diff options
| author | Andrey Andreev <narf@devilix.net> | 2019-09-19 14:08:45 +0200 |
|---|---|---|
| committer | Andrey Andreev <narf@devilix.net> | 2019-09-19 14:08:45 +0200 |
| commit | b73eb19aed66190c10c9cad476da7c36c271d6dc (patch) | |
| tree | b3d5d4f960569c30701934416d6d51628bde81a7 /user_guide_src/source/helpers | |
| parent | 6e052d80b95b9332ed592cdc3431b5f9dc8dd250 (diff) | |
[ci skip] 3.1.11 release
Diffstat (limited to 'user_guide_src/source/helpers')
22 files changed, 0 insertions, 3876 deletions
diff --git a/user_guide_src/source/helpers/array_helper.rst b/user_guide_src/source/helpers/array_helper.rst deleted file mode 100644 index d6b48773f..000000000 --- a/user_guide_src/source/helpers/array_helper.rst +++ /dev/null @@ -1,133 +0,0 @@ -############ -Array Helper -############ - -The Array Helper file contains functions that assist in working with -arrays. - -.. contents:: - :local: - -.. raw:: html - - <div class="custom-index container"></div> - -Loading this Helper -=================== - -This helper is loaded using the following code:: - - $this->load->helper('array'); - - -Available Functions -=================== - -The following functions are available: - - -.. php:function:: element($item, $array[, $default = NULL]) - - :param string $item: Item to fetch from the array - :param array $array: Input array - :param bool $default: What to return if the array isn't valid - :returns: NULL on failure or the array item. - :rtype: mixed - - Lets you fetch an item from an array. The function tests whether the - array index is set and whether it has a value. If a value exists it is - returned. If a value does not exist it returns NULL, or whatever you've - specified as the default value via the third parameter. - - Example:: - - $array = array( - 'color' => 'red', - 'shape' => 'round', - 'size' => '' - ); - - echo element('color', $array); // returns "red" - echo element('size', $array, 'foobar'); // returns "foobar" - - -.. php:function:: elements($items, $array[, $default = NULL]) - - :param string $item: Item to fetch from the array - :param array $array: Input array - :param bool $default: What to return if the array isn't valid - :returns: NULL on failure or the array item. - :rtype: mixed - - Lets you fetch a number of items from an array. The function tests - whether each of the array indices is set. If an index does not exist it - is set to NULL, or whatever you've specified as the default value via - the third parameter. - - Example:: - - $array = array( - 'color' => 'red', - 'shape' => 'round', - 'radius' => '10', - 'diameter' => '20' - ); - - $my_shape = elements(array('color', 'shape', 'height'), $array); - - The above will return the following array:: - - array( - 'color' => 'red', - 'shape' => 'round', - 'height' => NULL - ); - - You can set the third parameter to any default value you like. - :: - - $my_shape = elements(array('color', 'shape', 'height'), $array, 'foobar'); - - The above will return the following array:: - - array( - 'color' => 'red', - 'shape' => 'round', - 'height' => 'foobar' - ); - - This is useful when sending the ``$_POST`` array to one of your Models. - This prevents users from sending additional POST data to be entered into - your tables. - - :: - - $this->load->model('post_model'); - $this->post_model->update( - elements(array('id', 'title', 'content'), $_POST) - ); - - This ensures that only the id, title and content fields are sent to be - updated. - - -.. php:function:: random_element($array) - - :param array $array: Input array - :returns: A random element from the array - :rtype: mixed - - Takes an array as input and returns a random element from it. - - Usage example:: - - $quotes = array( - "I find that the harder I work, the more luck I seem to have. - Thomas Jefferson", - "Don't stay in bed, unless you can make money in bed. - George Burns", - "We didn't lose the game; we just ran out of time. - Vince Lombardi", - "If everything seems under control, you're not going fast enough. - Mario Andretti", - "Reality is merely an illusion, albeit a very persistent one. - Albert Einstein", - "Chance favors the prepared mind - Louis Pasteur" - ); - - echo random_element($quotes);
\ No newline at end of file diff --git a/user_guide_src/source/helpers/captcha_helper.rst b/user_guide_src/source/helpers/captcha_helper.rst deleted file mode 100644 index be1b20aaf..000000000 --- a/user_guide_src/source/helpers/captcha_helper.rst +++ /dev/null @@ -1,168 +0,0 @@ -############## -CAPTCHA Helper -############## - -The CAPTCHA Helper file contains functions that assist in creating -CAPTCHA images. - -.. contents:: - :local: - -.. raw:: html - - <div class="custom-index container"></div> - -Loading this Helper -=================== - -This helper is loaded using the following code:: - - $this->load->helper('captcha'); - -Using the CAPTCHA helper -======================== - -Once loaded you can generate a CAPTCHA like this:: - - $vals = array( - 'word' => 'Random word', - 'img_path' => './captcha/', - 'img_url' => 'http://example.com/captcha/', - 'font_path' => './path/to/fonts/texb.ttf', - 'img_width' => '150', - 'img_height' => 30, - 'expiration' => 7200, - 'word_length' => 8, - 'font_size' => 16, - 'img_id' => 'Imageid', - 'pool' => '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ', - - // White background and border, black text and red grid - 'colors' => array( - 'background' => array(255, 255, 255), - 'border' => array(255, 255, 255), - 'text' => array(0, 0, 0), - 'grid' => array(255, 40, 40) - ) - ); - - $cap = create_captcha($vals); - echo $cap['image']; - -- The captcha function requires the GD image library. -- Only the **img_path** and **img_url** are required. -- If a **word** is not supplied, the function will generate a random - ASCII string. You might put together your own word library that you - can draw randomly from. -- If you do not specify a path to a TRUE TYPE font, the native ugly GD - font will be used. -- The "captcha" directory must be writable -- The **expiration** (in seconds) signifies how long an image will remain - in the captcha folder before it will be deleted. The default is two - hours. -- **word_length** defaults to 8, **pool** defaults to '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ' -- **font_size** defaults to 16, the native GD font has a size limit. Specify a "true type" font for bigger sizes. -- The **img_id** will be set as the "id" of the captcha image. -- If any of the **colors** values is missing, it will be replaced by the default. - -Adding a Database ------------------ - -In order for the captcha function to prevent someone from submitting, -you will need to add the information returned from ``create_captcha()`` -to your database. Then, when the data from the form is submitted by -the user you will need to verify that the data exists in the database -and has not expired. - -Here is a table prototype:: - - CREATE TABLE captcha ( - captcha_id bigint(13) unsigned NOT NULL auto_increment, - captcha_time int(10) unsigned NOT NULL, - ip_address varchar(45) NOT NULL, - word varchar(20) NOT NULL, - PRIMARY KEY `captcha_id` (`captcha_id`), - KEY `word` (`word`) - ); - -Here is an example of usage with a database. On the page where the -CAPTCHA will be shown you'll have something like this:: - - $this->load->helper('captcha'); - $vals = array( - 'img_path' => './captcha/', - 'img_url' => 'http://example.com/captcha/' - ); - - $cap = create_captcha($vals); - $data = array( - 'captcha_time' => $cap['time'], - 'ip_address' => $this->input->ip_address(), - 'word' => $cap['word'] - ); - - $query = $this->db->insert_string('captcha', $data); - $this->db->query($query); - - echo 'Submit the word you see below:'; - echo $cap['image']; - echo '<input type="text" name="captcha" value="" />'; - -Then, on the page that accepts the submission you'll have something like -this:: - - // First, delete old captchas - $expiration = time() - 7200; // Two hour limit - $this->db->where('captcha_time < ', $expiration) - ->delete('captcha'); - - // Then see if a captcha exists: - $sql = 'SELECT COUNT(*) AS count FROM captcha WHERE word = ? AND ip_address = ? AND captcha_time > ?'; - $binds = array($_POST['captcha'], $this->input->ip_address(), $expiration); - $query = $this->db->query($sql, $binds); - $row = $query->row(); - - if ($row->count == 0) - { - echo 'You must submit the word that appears in the image.'; - } - -Available Functions -=================== - -The following functions are available: - -.. php:function:: create_captcha([$data = ''[, $img_path = ''[, $img_url = ''[, $font_path = '']]]]) - - :param array $data: Array of data for the CAPTCHA - :param string $img_path: Path to create the image in (DEPRECATED) - :param string $img_url: URL to the CAPTCHA image folder (DEPRECATED) - :param string $font_path: Server path to font (DEPRECATED) - :returns: array('word' => $word, 'time' => $now, 'image' => $img) - :rtype: array - - Takes an array of information to generate the CAPTCHA as input and - creates the image to your specifications, returning an array of - associative data about the image. - - :: - - array( - 'image' => IMAGE TAG - 'time' => TIMESTAMP (in microtime) - 'word' => CAPTCHA WORD - ) - - The **image** is the actual image tag:: - - <img src="http://example.com/captcha/12345.jpg" width="140" height="50" /> - - The **time** is the micro timestamp used as the image name without the - file extension. It will be a number like this: 1139612155.3422 - - The **word** is the word that appears in the captcha image, which if not - supplied to the function, will be a random string. - - .. note:: Usage of the ``$img_path``, ``$img_url`` and ``$font_path`` - parameters is DEPRECATED. Provide them in the ``$data`` array - instead. diff --git a/user_guide_src/source/helpers/cookie_helper.rst b/user_guide_src/source/helpers/cookie_helper.rst deleted file mode 100644 index 2ad51e78c..000000000 --- a/user_guide_src/source/helpers/cookie_helper.rst +++ /dev/null @@ -1,79 +0,0 @@ -############# -Cookie Helper -############# - -The Cookie Helper file contains functions that assist in working with -cookies. - -.. contents:: - :local: - -.. raw:: html - - <div class="custom-index container"></div> - -Loading this Helper -=================== - -This helper is loaded using the following code:: - - $this->load->helper('cookie'); - -Available Functions -=================== - -The following functions are available: - - -.. php:function:: set_cookie($name[, $value = ''[, $expire = ''[, $domain = ''[, $path = '/'[, $prefix = ''[, $secure = NULL[, $httponly = NULL]]]]]]]) - - :param mixed $name: Cookie name *or* associative array of all of the parameters available to this function - :param string $value: Cookie value - :param int $expire: Number of seconds until expiration - :param string $domain: Cookie domain (usually: .yourdomain.com) - :param string $path: Cookie path - :param string $prefix: Cookie name prefix - :param bool $secure: Whether to only send the cookie through HTTPS - :param bool $httponly: Whether to hide the cookie from JavaScript - :rtype: void - - This helper function gives you friendlier syntax to set browser - cookies. Refer to the :doc:`Input Library <../libraries/input>` for - a description of its use, as this function is an alias for - ``CI_Input::set_cookie()``. - -.. php:function:: get_cookie($index[, $xss_clean = NULL]) - - :param string $index: Cookie name - :param bool $xss_clean: Whether to apply XSS filtering to the returned value - :returns: The cookie value or NULL if not found - :rtype: mixed - - This helper function gives you friendlier syntax to get browser - cookies. Refer to the :doc:`Input Library <../libraries/input>` for - detailed description of its use, as this function acts very - similarly to ``CI_Input::cookie()``, except it will also prepend - the ``$config['cookie_prefix']`` that you might've set in your - *application/config/config.php* file. - -.. php:function:: delete_cookie($name[, $domain = ''[, $path = '/'[, $prefix = '']]]) - - :param string $name: Cookie name - :param string $domain: Cookie domain (usually: .yourdomain.com) - :param string $path: Cookie path - :param string $prefix: Cookie name prefix - :rtype: void - - Lets you delete a cookie. Unless you've set a custom path or other - values, only the name of the cookie is needed. - :: - - delete_cookie('name'); - - This function is otherwise identical to ``set_cookie()``, except that it - does not have the value and expiration parameters. You can submit an - array of values in the first parameter or you can set discrete - parameters. - :: - - delete_cookie($name, $domain, $path, $prefix); diff --git a/user_guide_src/source/helpers/date_helper.rst b/user_guide_src/source/helpers/date_helper.rst deleted file mode 100644 index 6bc6c2b05..000000000 --- a/user_guide_src/source/helpers/date_helper.rst +++ /dev/null @@ -1,440 +0,0 @@ -########### -Date Helper -########### - -The Date Helper file contains functions that help you work with dates. - -.. contents:: - :local: - -.. raw:: html - - <div class="custom-index container"></div> - -Loading this Helper -=================== - -This helper is loaded using the following code:: - - $this->load->helper('date'); - -Available Functions -=================== - -The following functions are available: - - -.. php:function:: now([$timezone = NULL]) - - :param string $timezone: Timezone - :returns: UNIX timestamp - :rtype: int - - Returns the current time as a UNIX timestamp, referenced either to your server's - local time or any PHP supported timezone, based on the "time reference" setting - in your config file. If you do not intend to set your master time reference to - any other PHP supported timezone (which you'll typically do if you run a site - that lets each user set their own timezone settings) there is no benefit to using - this function over PHP's ``time()`` function. - :: - - echo now('Australia/Victoria'); - - If a timezone is not provided, it will return ``time()`` based on the - **time_reference** setting. - -.. php:function:: mdate([$datestr = ''[, $time = '']]) - - :param string $datestr: Date string - :param int $time: UNIX timestamp - :returns: MySQL-formatted date - :rtype: string - - This function is identical to PHP's `date() <http://php.net/manual/en/function.date.php>`_ - function, except that it lets you use MySQL style date codes, where each - code letter is preceded with a percent sign, e.g. `%Y %m %d` - - The benefit of doing dates this way is that you don't have to worry - about escaping any characters that are not date codes, as you would - normally have to do with the ``date()`` function. - - Example:: - - $datestring = 'Year: %Y Month: %m Day: %d - %h:%i %a'; - $time = time(); - echo mdate($datestring, $time); - - If a timestamp is not included in the second parameter the current time - will be used. - -.. php:function:: standard_date([$fmt = 'DATE_RFC822'[, $time = NULL]]) - - :param string $fmt: Date format - :param int $time: UNIX timestamp - :returns: Formatted date or FALSE on invalid format - :rtype: string - - Lets you generate a date string in one of several standardized formats. - - Example:: - - $format = 'DATE_RFC822'; - $time = time(); - echo standard_date($format, $time); - - .. note:: This function is DEPRECATED. Use the native ``date()`` combined with - `DateTime's format constants - <https://secure.php.net/manual/en/class.datetime.php#datetime.constants.types>`_ - instead:: - - echo date(DATE_RFC822, time()); - - **Supported formats:** - - =============== ======================= ====================================== - Constant Description Example - =============== ======================= ====================================== - DATE_ATOM Atom 2005-08-15T16:13:03+0000 - DATE_COOKIE HTTP Cookies Sun, 14 Aug 2005 16:13:03 UTC - DATE_ISO8601 ISO-8601 2005-08-14T16:13:03+00:00 - DATE_RFC822 RFC 822 Sun, 14 Aug 05 16:13:03 UTC - DATE_RFC850 RFC 850 Sunday, 14-Aug-05 16:13:03 UTC - DATE_RFC1036 RFC 1036 Sunday, 14-Aug-05 16:13:03 UTC - DATE_RFC1123 RFC 1123 Sun, 14 Aug 2005 16:13:03 UTC - DATE_RFC2822 RFC 2822 Sun, 14 Aug 2005 16:13:03 +0000 - DATE_RSS RSS Sun, 14 Aug 2005 16:13:03 UTC - DATE_W3C W3C 2005-08-14T16:13:03+0000 - =============== ======================= ====================================== - -.. php:function:: local_to_gmt([$time = '']) - - :param int $time: UNIX timestamp - :returns: UNIX timestamp - :rtype: int - - Takes a UNIX timestamp as input and returns it as GMT. - - Example:: - - $gmt = local_to_gmt(time()); - -.. php:function:: gmt_to_local([$time = ''[, $timezone = 'UTC'[, $dst = FALSE]]]) - - :param int $time: UNIX timestamp - :param string $timezone: Timezone - :param bool $dst: Whether DST is active - :returns: UNIX timestamp - :rtype: int - - Takes a UNIX timestamp (referenced to GMT) as input, and converts it to - a localized timestamp based on the timezone and Daylight Saving Time - submitted. - - Example:: - - $timestamp = 1140153693; - $timezone = 'UM8'; - $daylight_saving = TRUE; - echo gmt_to_local($timestamp, $timezone, $daylight_saving); - - - .. note:: For a list of timezones see the reference at the bottom of this page. - -.. php:function:: mysql_to_unix([$time = '']) - - :param string $time: MySQL timestamp - :returns: UNIX timestamp - :rtype: int - - Takes a MySQL Timestamp as input and returns it as a UNIX timestamp. - - Example:: - - $unix = mysql_to_unix('20061124092345'); - -.. php:function:: unix_to_human([$time = ''[, $seconds = FALSE[, $fmt = 'us']]]) - - :param int $time: UNIX timestamp - :param bool $seconds: Whether to show seconds - :param string $fmt: format (us or euro) - :returns: Formatted date - :rtype: string - - Takes a UNIX timestamp as input and returns it in a human readable - format with this prototype:: - - YYYY-MM-DD HH:MM:SS AM/PM - - This can be useful if you need to display a date in a form field for - submission. - - The time can be formatted with or without seconds, and it can be set to - European or US format. If only the timestamp is submitted it will return - the time without seconds formatted for the U.S. - - Examples:: - - $now = time(); - echo unix_to_human($now); // U.S. time, no seconds - echo unix_to_human($now, TRUE, 'us'); // U.S. time with seconds - echo unix_to_human($now, TRUE, 'eu'); // Euro time with seconds - -.. php:function:: human_to_unix([$datestr = '']) - - :param int $datestr: Date string - :returns: UNIX timestamp or FALSE on failure - :rtype: int - - The opposite of the :php:func:`unix_to_time()` function. Takes a "human" - time as input and returns it as a UNIX timestamp. This is useful if you - accept "human" formatted dates submitted via a form. Returns boolean FALSE - date string passed to it is not formatted as indicated above. - - Example:: - - $now = time(); - $human = unix_to_human($now); - $unix = human_to_unix($human); - -.. php:function:: nice_date([$bad_date = ''[, $format = FALSE]]) - - :param int $bad_date: The terribly formatted date-like string - :param string $format: Date format to return (same as PHP's ``date()`` function) - :returns: Formatted date - :rtype: string - - This function can take a number poorly-formed date formats and convert - them into something useful. It also accepts well-formed dates. - - The function will return a UNIX timestamp by default. You can, optionally, - pass a format string (the same type as the PHP ``date()`` function accepts) - as the second parameter. - - Example:: - - $bad_date = '199605'; - // Should Produce: 1996-05-01 - $better_date = nice_date($bad_date, 'Y-m-d'); - - $bad_date = '9-11-2001'; - // Should Produce: 2001-09-11 - $better_date = nice_date($bad_date, 'Y-m-d'); - - .. note:: This function is DEPRECATED. Use PHP's native `DateTime class - <https://secure.php.net/datetime>`_ instead. - -.. php:function:: timespan([$seconds = 1[, $time = ''[, $units = '']]]) - - :param int $seconds: Number of seconds - :param string $time: UNIX timestamp - :param int $units: Number of time units to display - :returns: Formatted time difference - :rtype: string - - Formats a UNIX timestamp so that is appears similar to this:: - - 1 Year, 10 Months, 2 Weeks, 5 Days, 10 Hours, 16 Minutes - - The first parameter must contain a UNIX timestamp. - The second parameter must contain a timestamp that is greater that the - first timestamp. - The thirdparameter is optional and limits the number of time units to display. - - If the second parameter empty, the current time will be used. - - The most common purpose for this function is to show how much time has - elapsed from some point in time in the past to now. - - Example:: - - $post_date = '1079621429'; - $now = time(); - $units = 2; - echo timespan($post_date, $now, $units); - - .. note:: The text generated by this function is found in the following language - file: `language/<your_lang>/date_lang.php` - -.. php:function:: days_in_month([$month = 0[, $year = '']]) - - :param int $month: a numeric month - :param int $year: a numeric year - :returns: Count of days in the specified month - :rtype: int - - Returns the number of days in a given month/year. Takes leap years into - account. - - Example:: - - echo days_in_month(06, 2005); - - If the second parameter is empty, the current year will be used. - - .. note:: This function will alias the native ``cal_days_in_month()``, if - it is available. - -.. php:function:: date_range([$unix_start = ''[, $mixed = ''[, $is_unix = TRUE[, $format = 'Y-m-d']]]]) - - :param int $unix_start: UNIX timestamp of the range start date - :param int $mixed: UNIX timestamp of the range end date or interval in days - :param bool $is_unix: set to FALSE if $mixed is not a timestamp - :param string $format: Output date format, same as in ``date()`` - :returns: An array of dates - :rtype: array - - Returns a list of dates within a specified period. - - Example:: - - $range = date_range('2012-01-01', '2012-01-15'); - echo "First 15 days of 2012:"; - foreach ($range as $date) - { - echo $date."\n"; - } - -.. php:function:: timezones([$tz = '']) - - :param string $tz: A numeric timezone - :returns: Hour difference from UTC - :rtype: int - - Takes a timezone reference (for a list of valid timezones, see the - "Timezone Reference" below) and returns the number of hours offset from - UTC. - - Example:: - - echo timezones('UM5'); - - - This function is useful when used with :php:func:`timezone_menu()`. - -.. php:function:: timezone_menu([$default = 'UTC'[, $class = ''[, $name = 'timezones'[, $attributes = '']]]]) - - :param string $default: Timezone - :param string $class: Class name - :param string $name: Menu name - :param mixed $attributes: HTML attributes - :returns: HTML drop down menu with time zones - :rtype: string - - Generates a pull-down menu of timezones, like this one: - - .. raw:: html - - <form action="#"> - <select name="timezones"> - <option value='UM12'>(UTC -12:00) Baker/Howland Island</option> - <option value='UM11'>(UTC -11:00) Samoa Time Zone, Niue</option> - <option value='UM10'>(UTC -10:00) Hawaii-Aleutian Standard Time, Cook Islands, Tahiti</option> - <option value='UM95'>(UTC -9:30) Marquesas Islands</option> - <option value='UM9'>(UTC -9:00) Alaska Standard Time, Gambier Islands</option> - <option value='UM8'>(UTC -8:00) Pacific Standard Time, Clipperton Island</option> - <option value='UM7'>(UTC -7:00) Mountain Standard Time</option> - <option value='UM6'>(UTC -6:00) Central Standard Time</option> - <option value='UM5'>(UTC -5:00) Eastern Standard Time, Western Caribbean Standard Time</option> - <option value='UM45'>(UTC -4:30) Venezuelan Standard Time</option> - <option value='UM4'>(UTC -4:00) Atlantic Standard Time, Eastern Caribbean Standard Time</option> - <option value='UM35'>(UTC -3:30) Newfoundland Standard Time</option> - <option value='UM3'>(UTC -3:00) Argentina, Brazil, French Guiana, Uruguay</option> - <option value='UM2'>(UTC -2:00) South Georgia/South Sandwich Islands</option> - <option value='UM1'>(UTC -1:00) Azores, Cape Verde Islands</option> - <option value='UTC' selected='selected'>(UTC) Greenwich Mean Time, Western European Time</option> - <option value='UP1'>(UTC +1:00) Central European Time, West Africa Time</option> - <option value='UP2'>(UTC +2:00) Central Africa Time, Eastern European Time, Kaliningrad Time</option> - <option value='UP3'>(UTC +3:00) Moscow Time, East Africa Time</option> - <option value='UP35'>(UTC +3:30) Iran Standard Time</option> - <option value='UP4'>(UTC +4:00) Azerbaijan Standard Time, Samara Time</option> - <option value='UP45'>(UTC +4:30) Afghanistan</option> - <option value='UP5'>(UTC +5:00) Pakistan Standard Time, Yekaterinburg Time</option> - <option value='UP55'>(UTC +5:30) Indian Standard Time, Sri Lanka Time</option> - <option value='UP575'>(UTC +5:45) Nepal Time</option> - <option value='UP6'>(UTC +6:00) Bangladesh Standard Time, Bhutan Time, Omsk Time</option> - <option value='UP65'>(UTC +6:30) Cocos Islands, Myanmar</option> - <option value='UP7'>(UTC +7:00) Krasnoyarsk Time, Cambodia, Laos, Thailand, Vietnam</option> - <option value='UP8'>(UTC +8:00) Australian Western Standard Time, Beijing Time, Irkutsk Time</option> - <option value='UP875'>(UTC +8:45) Australian Central Western Standard Time</option> - <option value='UP9'>(UTC +9:00) Japan Standard Time, Korea Standard Time, Yakutsk Time</option> - <option value='UP95'>(UTC +9:30) Australian Central Standard Time</option> - <option value='UP10'>(UTC +10:00) Australian Eastern Standard Time, Vladivostok Time</option> - <option value='UP105'>(UTC +10:30) Lord Howe Island</option> - <option value='UP11'>(UTC +11:00) Srednekolymsk Time, Solomon Islands, Vanuatu</option> - <option value='UP115'>(UTC +11:30) Norfolk Island</option> - <option value='UP12'>(UTC +12:00) Fiji, Gilbert Islands, Kamchatka Time, New Zealand Standard Time</option> - <option value='UP1275'>(UTC +12:45) Chatham Islands Standard Time</option> - <option value='UP13'>(UTC +13:00) Phoenix Islands Time, Tonga</option> - <option value='UP14'>(UTC +14:00) Line Islands</option> - </select> - </form> - - - This menu is useful if you run a membership site in which your users are - allowed to set their local timezone value. - - The first parameter lets you set the "selected" state of the menu. For - example, to set Pacific time as the default you will do this:: - - echo timezone_menu('UM8'); - - Please see the timezone reference below to see the values of this menu. - - The second parameter lets you set a CSS class name for the menu. - - The fourth parameter lets you set one or more attributes on the generated select tag. - - .. note:: The text contained in the menu is found in the following - language file: `language/<your_lang>/date_lang.php` - -Timezone Reference -================== - -The following table indicates each timezone and its location. - -Note some of the location lists have been abridged for clarity and formatting. - -=========== ===================================================================== -Time Zone Location -=========== ===================================================================== -UM12 (UTC - 12:00) Baker/Howland Island -UM11 (UTC - 11:00) Samoa Time Zone, Niue -UM10 (UTC - 10:00) Hawaii-Aleutian Standard Time, Cook Islands -UM95 (UTC - 09:30) Marquesas Islands -UM9 (UTC - 09:00) Alaska Standard Time, Gambier Islands -UM8 (UTC - 08:00) Pacific Standard Time, Clipperton Island -UM7 (UTC - 07:00) Mountain Standard Time -UM6 (UTC - 06:00) Central Standard Time -UM5 (UTC - 05:00) Eastern Standard Time, Western Caribbean -UM45 (UTC - 04:30) Venezuelan Standard Time -UM4 (UTC - 04:00) Atlantic Standard Time, Eastern Caribbean -UM35 (UTC - 03:30) Newfoundland Standard Time -UM3 (UTC - 03:00) Argentina, Brazil, French Guiana, Uruguay -UM2 (UTC - 02:00) South Georgia/South Sandwich Islands -UM1 (UTC -1:00) Azores, Cape Verde Islands -UTC (UTC) Greenwich Mean Time, Western European Time -UP1 (UTC +1:00) Central European Time, West Africa Time -UP2 (UTC +2:00) Central Africa Time, Eastern European Time -UP3 (UTC +3:00) Moscow Time, East Africa Time -UP35 (UTC +3:30) Iran Standard Time -UP4 (UTC +4:00) Azerbaijan Standard Time, Samara Time -UP45 (UTC +4:30) Afghanistan -UP5 (UTC +5:00) Pakistan Standard Time, Yekaterinburg Time -UP55 (UTC +5:30) Indian Standard Time, Sri Lanka Time -UP575 (UTC +5:45) Nepal Time -UP6 (UTC +6:00) Bangladesh Standard Time, Bhutan Time, Omsk Time -UP65 (UTC +6:30) Cocos Islands, Myanmar -UP7 (UTC +7:00) Krasnoyarsk Time, Cambodia, Laos, Thailand, Vietnam -UP8 (UTC +8:00) Australian Western Standard Time, Beijing Time -UP875 (UTC +8:45) Australian Central Western Standard Time -UP9 (UTC +9:00) Japan Standard Time, Korea Standard Time, Yakutsk -UP95 (UTC +9:30) Australian Central Standard Time -UP10 (UTC +10:00) Australian Eastern Standard Time, Vladivostok Time -UP105 (UTC +10:30) Lord Howe Island -UP11 (UTC +11:00) Srednekolymsk Time, Solomon Islands, Vanuatu -UP115 (UTC +11:30) Norfolk Island -UP12 (UTC +12:00) Fiji, Gilbert Islands, Kamchatka, New Zealand -UP1275 (UTC +12:45) Chatham Islands Standard Time -UP13 (UTC +13:00) Phoenix Islands Time, Tonga -UP14 (UTC +14:00) Line Islands -=========== ===================================================================== diff --git a/user_guide_src/source/helpers/directory_helper.rst b/user_guide_src/source/helpers/directory_helper.rst deleted file mode 100644 index b5f1093c1..000000000 --- a/user_guide_src/source/helpers/directory_helper.rst +++ /dev/null @@ -1,83 +0,0 @@ -################ -Directory Helper -################ - -The Directory Helper file contains functions that assist in working with -directories. - -.. contents:: - :local: - -.. raw:: html - - <div class="custom-index container"></div> - -Loading this Helper -=================== - -This helper is loaded using the following code: - -:: - - $this->load->helper('directory'); - -Available Functions -=================== - -The following functions are available: - - -.. php:function:: directory_map($source_dir[, $directory_depth = 0[, $hidden = FALSE]]) - - :param string $source_dir: Path to the source directory - :param int $directory_depth: Depth of directories to traverse (0 = fully recursive, 1 = current dir, etc) - :param bool $hidden: Whether to include hidden directories - :returns: An array of files - :rtype: array - - Examples:: - - $map = directory_map('./mydirectory/'); - - .. note:: Paths are almost always relative to your main index.php file. - - - Sub-folders contained within the directory will be mapped as well. If - you wish to control the recursion depth, you can do so using the second - parameter (integer). A depth of 1 will only map the top level directory:: - - $map = directory_map('./mydirectory/', 1); - - By default, hidden files will not be included in the returned array. To - override this behavior, you may set a third parameter to true (boolean):: - - $map = directory_map('./mydirectory/', FALSE, TRUE); - - Each folder name will be an array index, while its contained files will - be numerically indexed. Here is an example of a typical array:: - - Array ( - [libraries] => Array - ( - [0] => benchmark.html - [1] => config.html - ["database/"] => Array - ( - [0] => query_builder.html - [1] => binds.html - [2] => configuration.html - [3] => connecting.html - [4] => examples.html - [5] => fields.html - [6] => index.html - [7] => queries.html - ) - [2] => email.html - [3] => file_uploading.html - [4] => image_lib.html - [5] => input.html - [6] => language.html - [7] => loader.html - [8] => pagination.html - [9] => uri.html - )
\ No newline at end of file diff --git a/user_guide_src/source/helpers/download_helper.rst b/user_guide_src/source/helpers/download_helper.rst deleted file mode 100644 index 1a4065073..000000000 --- a/user_guide_src/source/helpers/download_helper.rst +++ /dev/null @@ -1,56 +0,0 @@ -############### -Download Helper -############### - -The Download Helper lets you download data to your desktop. - -.. contents:: - :local: - -.. raw:: html - - <div class="custom-index container"></div> - -Loading this Helper -=================== - -This helper is loaded using the following code:: - - $this->load->helper('download'); - -Available Functions -=================== - -The following functions are available: - - -.. php:function:: force_download([$filename = ''[, $data = ''[, $set_mime = FALSE]]]) - - :param string $filename: Filename - :param mixed $data: File contents - :param bool $set_mime: Whether to try to send the actual MIME type - :rtype: void - - Generates server headers which force data to be downloaded to your - desktop. Useful with file downloads. The first parameter is the **name - you want the downloaded file to be named**, the second parameter is the - file data. - - If you set the second parameter to NULL and ``$filename`` is an existing, readable - file path, then its content will be read instead. - - If you set the third parameter to boolean TRUE, then the actual file MIME type - (based on the filename extension) will be sent, so that if your browser has a - handler for that type - it can use it. - - Example:: - - $data = 'Here is some text!'; - $name = 'mytext.txt'; - force_download($name, $data); - - If you want to download an existing file from your server you'll need to - do the following:: - - // Contents of photo.jpg will be automatically read - force_download('/path/to/photo.jpg', NULL);
\ No newline at end of file diff --git a/user_guide_src/source/helpers/email_helper.rst b/user_guide_src/source/helpers/email_helper.rst deleted file mode 100644 index 1ee97d902..000000000 --- a/user_guide_src/source/helpers/email_helper.rst +++ /dev/null @@ -1,75 +0,0 @@ -############ -Email Helper -############ - -The Email Helper provides some assistive functions for working with -Email. For a more robust email solution, see CodeIgniter's :doc:`Email -Class <../libraries/email>`. - -.. important:: The Email helper is DEPRECATED and is currently - only kept for backwards compatibility. - -.. contents:: - :local: - -.. raw:: html - - <div class="custom-index container"></div> - -Loading this Helper -=================== - -This helper is loaded using the following code:: - - $this->load->helper('email'); - -Available Functions -=================== - -The following functions are available: - - -.. php:function:: valid_email($email) - - :param string $email: E-mail address - :returns: TRUE if a valid email is supplied, FALSE otherwise - :rtype: bool - - Checks if the input is a correctly formatted e-mail address. Note that is - doesn't actually prove that the address will be able recieve mail, but - simply that it is a validly formed address. - - Example:: - - if (valid_email('email@somesite.com')) - { - echo 'email is valid'; - } - else - { - echo 'email is not valid'; - } - - .. note:: All that this function does is to use PHP's native ``filter_var()``:: - - (bool) filter_var($email, FILTER_VALIDATE_EMAIL); - -.. php:function:: send_email($recipient, $subject, $message) - - :param string $recipient: E-mail address - :param string $subject: Mail subject - :param string $message: Message body - :returns: TRUE if the mail was successfully sent, FALSE in case of an error - :rtype: bool - - Sends an email using PHP's native `mail() <http://php.net/function.mail>`_ - function. - - .. note:: All that this function does is to use PHP's native ``mail`` - - :: - - mail($recipient, $subject, $message); - - For a more robust email solution, see CodeIgniter's :doc:`Email Library - <../libraries/email>`.
\ No newline at end of file diff --git a/user_guide_src/source/helpers/file_helper.rst b/user_guide_src/source/helpers/file_helper.rst deleted file mode 100644 index 833cddea4..000000000 --- a/user_guide_src/source/helpers/file_helper.rst +++ /dev/null @@ -1,202 +0,0 @@ -########### -File Helper -########### - -The File Helper file contains functions that assist in working with files. - -.. contents:: - :local: - -.. raw:: html - - <div class="custom-index container"></div> - -Loading this Helper -=================== - -This helper is loaded using the following code:: - - $this->load->helper('file'); - -Available Functions -=================== - -The following functions are available: - - -.. php:function:: read_file($file) - - :param string $file: File path - :returns: File contents or FALSE on failure - :rtype: string - - Returns the data contained in the file specified in the path. - - Example:: - - $string = read_file('./path/to/file.php'); - - The path can be a relative or full server path. Returns FALSE (boolean) on failure. - - .. note:: The path is relative to your main site index.php file, NOT your - controller or view files. CodeIgniter uses a front controller so paths - are always relative to the main site index. - - .. note:: This function is DEPRECATED. Use the native ``file_get_contents()`` - instead. - - .. important:: If your server is running an **open_basedir** restriction this - function might not work if you are trying to access a file above the - calling script. - -.. php:function:: write_file($path, $data[, $mode = 'wb']) - - :param string $path: File path - :param string $data: Data to write to file - :param string $mode: ``fopen()`` mode - :returns: TRUE if the write was successful, FALSE in case of an error - :rtype: bool - - Writes data to the file specified in the path. If the file does not exist then the - function will create it. - - Example:: - - $data = 'Some file data'; - if ( ! write_file('./path/to/file.php', $data)) - { - echo 'Unable to write the file'; - } - else - { - echo 'File written!'; - } - - You can optionally set the write mode via the third parameter:: - - write_file('./path/to/file.php', $data, 'r+'); - - The default mode is 'wb'. Please see the `PHP user guide <http://php.net/manual/en/function.fopen.php>`_ - for mode options. - - .. note: In order for this function to write data to a file, its permissions must - be set such that it is writable. If the file does not already exist, - then the directory containing it must be writable. - - .. note:: The path is relative to your main site index.php file, NOT your - controller or view files. CodeIgniter uses a front controller so paths - are always relative to the main site index. - - .. note:: This function acquires an exclusive lock on the file while writing to it. - -.. php:function:: delete_files($path[, $del_dir = FALSE[, $htdocs = FALSE]]) - - :param string $path: Directory path - :param bool $del_dir: Whether to also delete directories - :param bool $htdocs: Whether to skip deleting .htaccess and index page files - :returns: TRUE on success, FALSE in case of an error - :rtype: bool - - Deletes ALL files contained in the supplied path. - - Example:: - - delete_files('./path/to/directory/'); - - If the second parameter is set to TRUE, any directories contained within the supplied - root path will be deleted as well. - - Example:: - - delete_files('./path/to/directory/', TRUE); - - .. note:: The files must be writable or owned by the system in order to be deleted. - -.. php:function:: get_filenames($source_dir[, $include_path = FALSE]) - - :param string $source_dir: Directory path - :param bool $include_path: Whether to include the path as part of the filenames - :returns: An array of file names - :rtype: array - - Takes a server path as input and returns an array containing the names of all files - contained within it. The file path can optionally be added to the file names by setting - the second parameter to TRUE. - - Example:: - - $controllers = get_filenames(APPPATH.'controllers/'); - -.. php:function:: get_dir_file_info($source_dir, $top_level_only) - - :param string $source_dir: Directory path - :param bool $top_level_only: Whether to look only at the specified directory (excluding sub-directories) - :returns: An array containing info on the supplied directory's contents - :rtype: array - - Reads the specified directory and builds an array containing the filenames, filesize, - dates, and permissions. Sub-folders contained within the specified path are only read - if forced by sending the second parameter to FALSE, as this can be an intensive - operation. - - Example:: - - $models_info = get_dir_file_info(APPPATH.'models/'); - -.. php:function:: get_file_info($file[, $returned_values = array('name', 'server_path', 'size', 'date')]) - - :param string $file: File path - :param array $returned_values: What type of info to return - :returns: An array containing info on the specified file or FALSE on failure - :rtype: array - - Given a file and path, returns (optionally) the *name*, *path*, *size* and *date modified* - information attributes for a file. Second parameter allows you to explicitly declare what - information you want returned. - - Valid ``$returned_values`` options are: `name`, `size`, `date`, `readable`, `writeable`, - `executable` and `fileperms`. - -.. php:function:: get_mime_by_extension($filename) - - :param string $filename: File name - :returns: MIME type string or FALSE on failure - :rtype: string - - Translates a filename extension into a MIME type based on *config/mimes.php*. - Returns FALSE if it can't determine the type, or read the MIME config file. - - :: - - $file = 'somefile.png'; - echo $file.' is has a mime type of '.get_mime_by_extension($file); - - .. note:: This is not an accurate way of determining file MIME types, and - is here strictly for convenience. It should not be used for security - purposes. - -.. php:function:: symbolic_permissions($perms) - - :param int $perms: Permissions - :returns: Symbolic permissions string - :rtype: string - - Takes numeric permissions (such as is returned by ``fileperms()``) and returns - standard symbolic notation of file permissions. - - :: - - echo symbolic_permissions(fileperms('./index.php')); // -rw-r--r-- - -.. php:function:: octal_permissions($perms) - - :param int $perms: Permissions - :returns: Octal permissions string - :rtype: string - - Takes numeric permissions (such as is returned by ``fileperms()``) and returns - a three character octal notation of file permissions. - - :: - - echo octal_permissions(fileperms('./index.php')); // 644
\ No newline at end of file diff --git a/user_guide_src/source/helpers/form_helper.rst b/user_guide_src/source/helpers/form_helper.rst deleted file mode 100644 index 5002a25e4..000000000 --- a/user_guide_src/source/helpers/form_helper.rst +++ /dev/null @@ -1,743 +0,0 @@ -########### -Form Helper -########### - -The Form Helper file contains functions that assist in working with -forms. - -.. contents:: - :local: - -.. raw:: html - - <div class="custom-index container"></div> - -Loading this Helper -=================== - -This helper is loaded using the following code:: - - $this->load->helper('form'); - -Escaping field values -===================== - -You may need to use HTML and characters such as quotes within your form -elements. In order to do that safely, you'll need to use -:doc:`common function <../general/common_functions>` -:func:`html_escape()`. - -Consider the following example:: - - $string = 'Here is a string containing "quoted" text.'; - - <input type="text" name="myfield" value="<?php echo $string; ?>" /> - -Since the above string contains a set of quotes, it will cause the form -to break. The :php:func:`html_escape()` function converts HTML special -characters so that it can be used safely:: - - <input type="text" name="myfield" value="<?php echo html_escape($string); ?>" /> - -.. note:: If you use any of the form helper functions listed on this page, - the form values will be automatically escaped, so there is no need - to call this function. Use it only if you are creating your own - form elements. - -Available Functions -=================== - -The following functions are available: - - -.. php:function:: form_open([$action = ''[, $attributes = ''[, $hidden = array()]]]) - - :param string $action: Form action/target URI string - :param array $attributes: HTML attributes - :param array $hidden: An array of hidden fields' definitions - :returns: An HTML form opening tag - :rtype: string - - Creates an opening form tag with a base URL **built from your config preferences**. - It will optionally let you add form attributes and hidden input fields, and - will always add the `accept-charset` attribute based on the charset value in your - config file. - - The main benefit of using this tag rather than hard coding your own HTML is that - it permits your site to be more portable in the event your URLs ever change. - - Here's a simple example:: - - echo form_open('email/send'); - - The above example would create a form that points to your base URL plus the - "email/send" URI segments, like this:: - - <form method="post" accept-charset="utf-8" action="http://example.com/index.php/email/send"> - - **Adding Attributes** - - Attributes can be added by passing an associative array to the second - parameter, like this:: - - $attributes = array('class' => 'email', 'id' => 'myform'); - echo form_open('email/send', $attributes); - - Alternatively, you can specify the second parameter as a string:: - - echo form_open('email/send', 'class="email" id="myform"'); - - The above examples would create a form similar to this:: - - <form method="post" accept-charset="utf-8" action="http://example.com/index.php/email/send" class="email" id="myform"> - - **Adding Hidden Input Fields** - - Hidden fields can be added by passing an associative array to the - third parameter, like this:: - - $hidden = array('username' => 'Joe', 'member_id' => '234'); - echo form_open('email/send', '', $hidden); - - You can skip the second parameter by passing any falsy value to it. - - The above example would create a form similar to this:: - - <form method="post" accept-charset="utf-8" action="http://example.com/index.php/email/send"> - <input type="hidden" name="username" value="Joe" /> - <input type="hidden" name="member_id" value="234" /> - - -.. php:function:: form_open_multipart([$action = ''[, $attributes = array()[, $hidden = array()]]]) - - :param string $action: Form action/target URI string - :param array $attributes: HTML attributes - :param array $hidden: An array of hidden fields' definitions - :returns: An HTML multipart form opening tag - :rtype: string - - This function is absolutely identical to :php:func:`form_open()` above, - except that it adds a *multipart* attribute, which is necessary if you - would like to use the form to upload files with. - - -.. php:function:: form_hidden($name[, $value = '']) - - :param string $name: Field name - :param string $value: Field value - :returns: An HTML hidden input field tag - :rtype: string - - Lets you generate hidden input fields. You can either submit a - name/value string to create one field:: - - form_hidden('username', 'johndoe'); - // Would produce: <input type="hidden" name="username" value="johndoe" /> - - ... or you can submit an associative array to create multiple fields:: - - $data = array( - 'name' => 'John Doe', - 'email' => 'john@example.com', - 'url' => 'http://example.com' - ); - - echo form_hidden($data); - - /* - Would produce: - <input type="hidden" name="name" value="John Doe" /> - <input type="hidden" name="email" value="john@example.com" /> - <input type="hidden" name="url" value="http://example.com" /> - */ - - You can also pass an associative array to the value field:: - - $data = array( - 'name' => 'John Doe', - 'email' => 'john@example.com', - 'url' => 'http://example.com' - ); - - echo form_hidden('my_array', $data); - - /* - Would produce: - - <input type="hidden" name="my_array[name]" value="John Doe" /> - <input type="hidden" name="my_array[email]" value="john@example.com" /> - <input type="hidden" name="my_array[url]" value="http://example.com" /> - */ - - If you want to create hidden input fields with extra attributes:: - - $data = array( - 'type' => 'hidden', - 'name' => 'email', - 'id' => 'hiddenemail', - 'value' => 'john@example.com', - 'class' => 'hiddenemail' - ); - - echo form_input($data); - - /* - Would produce: - - <input type="hidden" name="email" value="john@example.com" id="hiddenemail" class="hiddenemail" /> - */ - -.. php:function:: form_input([$data = ''[, $value = ''[, $extra = '']]]) - - :param array $data: Field attributes data - :param string $value: Field value - :param mixed $extra: Extra attributes to be added to the tag either as an array or a literal string - :returns: An HTML text input field tag - :rtype: string - - Lets you generate a standard text input field. You can minimally pass - the field name and value in the first and second parameter:: - - echo form_input('username', 'johndoe'); - - Or you can pass an associative array containing any data you wish your - form to contain:: - - $data = array( - 'name' => 'username', - 'id' => 'username', - 'value' => 'johndoe', - 'maxlength' => '100', - 'size' => '50', - 'style' => 'width:50%' - ); - - echo form_input($data); - - /* - Would produce: - - <input type="text" name="username" value="johndoe" id="username" maxlength="100" size="50" style="width:50%" /> - */ - - If you would like your form to contain some additional data, like - JavaScript, you can pass it as a string in the third parameter:: - - $js = 'onClick="some_function()"'; - echo form_input('username', 'johndoe', $js); - - Or you can pass it as an array:: - - $js = array('onClick' => 'some_function();'); - echo form_input('username', 'johndoe', $js); - -.. php:function:: form_password([$data = ''[, $value = ''[, $extra = '']]]) - - :param array $data: Field attributes data - :param string $value: Field value - :param mixed $extra: Extra attributes to be added to the tag either as an array or a literal string - :returns: An HTML password input field tag - :rtype: string - - This function is identical in all respects to the :php:func:`form_input()` - function above except that it uses the "password" input type. - - -.. php:function:: form_upload([$data = ''[, $value = ''[, $extra = '']]]) - - :param array $data: Field attributes data - :param string $value: Field value - :param mixed $extra: Extra attributes to be added to the tag either as an array or a literal string - :returns: An HTML file upload input field tag - :rtype: string - - This function is identical in all respects to the :php:func:`form_input()` - function above except that it uses the "file" input type, allowing it to - be used to upload files. - - -.. php:function:: form_textarea([$data = ''[, $value = ''[, $extra = '']]]) - - :param array $data: Field attributes data - :param string $value: Field value - :param mixed $extra: Extra attributes to be added to the tag either as an array or a literal string - :returns: An HTML textarea tag - :rtype: string - - This function is identical in all respects to the :php:func:`form_input()` - function above except that it generates a "textarea" type. - - .. note:: Instead of the *maxlength* and *size* attributes in the above example, - you will instead specify *rows* and *cols*. - -.. php:function:: form_dropdown([$name = ''[, $options = array()[, $selected = array()[, $extra = '']]]]) - - :param string $name: Field name - :param array $options: An associative array of options to be listed - :param array $selected: List of fields to mark with the *selected* attribute - :param mixed $extra: Extra attributes to be added to the tag either as an array or a literal string - :returns: An HTML dropdown select field tag - :rtype: string - - Lets you create a standard drop-down field. The first parameter will - contain the name of the field, the second parameter will contain an - associative array of options, and the third parameter will contain the - value you wish to be selected. You can also pass an array of multiple - items through the third parameter, and CodeIgniter will create a - multiple select for you. - - Example:: - - $options = array( - 'small' => 'Small Shirt', - 'med' => 'Medium Shirt', - 'large' => 'Large Shirt', - 'xlarge' => 'Extra Large Shirt', - ); - - $shirts_on_sale = array('small', 'large'); - echo form_dropdown('shirts', $options, 'large'); - - /* - Would produce: - - <select name="shirts"> - <option value="small">Small Shirt</option> - <option value="med">Medium Shirt</option> - <option value="large" selected="selected">Large Shirt</option> - <option value="xlarge">Extra Large Shirt</option> - </select> - */ - - echo form_dropdown('shirts', $options, $shirts_on_sale); - - /* - Would produce: - - <select name="shirts" multiple="multiple"> - <option value="small" selected="selected">Small Shirt</option> - <option value="med">Medium Shirt</option> - <option value="large" selected="selected">Large Shirt</option> - <option value="xlarge">Extra Large Shirt</option> - </select> - */ - - If you would like the opening <select> to contain additional data, like - an id attribute or JavaScript, you can pass it as a string in the fourth - parameter:: - - $js = 'id="shirts" onChange="some_function();"'; - echo form_dropdown('shirts', $options, 'large', $js); - - Or you can pass it as an array:: - - $js = array( - 'id' => 'shirts', - 'onChange' => 'some_function();' - ); - echo form_dropdown('shirts', $options, 'large', $js); - - If the array passed as ``$options`` is a multidimensional array, then - ``form_dropdown()`` will produce an <optgroup> with the array key as the - label. - - -.. php:function:: form_multiselect([$name = ''[, $options = array()[, $selected = array()[, $extra = '']]]]) - - :param string $name: Field name - :param array $options: An associative array of options to be listed - :param array $selected: List of fields to mark with the *selected* attribute - :param mixed $extra: Extra attributes to be added to the tag either as an array or a literal string - :returns: An HTML dropdown multiselect field tag - :rtype: string - - Lets you create a standard multiselect field. The first parameter will - contain the name of the field, the second parameter will contain an - associative array of options, and the third parameter will contain the - value or values you wish to be selected. - - The parameter usage is identical to using :php:func:`form_dropdown()` above, - except of course that the name of the field will need to use POST array - syntax, e.g. foo[]. - - -.. php:function:: form_fieldset([$legend_text = ''[, $attributes = array()]]) - - :param string $legend_text: Text to put in the <legend> tag - :param array $attributes: Attributes to be set on the <fieldset> tag - :returns: An HTML fieldset opening tag - :rtype: string - - Lets you generate fieldset/legend fields. - - Example:: - - echo form_fieldset('Address Information'); - echo "<p>fieldset content here</p>\n"; - echo form_fieldset_close(); - - /* - Produces: - - <fieldset> - <legend>Address Information</legend> - <p>fieldset content here</p> - </fieldset> - */ - - Similar to other functions, you can submit an associative array in the - second parameter if you prefer to set additional attributes:: - - $attributes = array( - 'id' => 'address_info', - 'class' => 'address_info' - ); - - echo form_fieldset('Address Information', $attributes); - echo "<p>fieldset content here</p>\n"; - echo form_fieldset_close(); - - /* - Produces: - - <fieldset id="address_info" class="address_info"> - <legend>Address Information</legend> - <p>fieldset content here</p> - </fieldset> - */ - - -.. php:function:: form_fieldset_close([$extra = '']) - - :param string $extra: Anything to append after the closing tag, *as is* - :returns: An HTML fieldset closing tag - :rtype: string - - - Produces a closing </fieldset> tag. The only advantage to using this - function is it permits you to pass data to it which will be added below - the tag. For example - - :: - - $string = '</div></div>'; - echo form_fieldset_close($string); - // Would produce: </fieldset></div></div> - - -.. php:function:: form_checkbox([$data = ''[, $value = ''[, $checked = FALSE[, $extra = '']]]]) - - :param array $data: Field attributes data - :param string $value: Field value - :param bool $checked: Whether to mark the checkbox as being *checked* - :param mixed $extra: Extra attributes to be added to the tag either as an array or a literal string - :returns: An HTML checkbox input tag - :rtype: string - - Lets you generate a checkbox field. Simple example:: - - echo form_checkbox('newsletter', 'accept', TRUE); - // Would produce: <input type="checkbox" name="newsletter" value="accept" checked="checked" /> - - The third parameter contains a boolean TRUE/FALSE to determine whether - the box should be checked or not. - - Similar to the other form functions in this helper, you can also pass an - array of attributes to the function:: - - $data = array( - 'name' => 'newsletter', - 'id' => 'newsletter', - 'value' => 'accept', - 'checked' => TRUE, - 'style' => 'margin:10px' - ); - - echo form_checkbox($data); - // Would produce: <input type="checkbox" name="newsletter" id="newsletter" value="accept" checked="checked" style="margin:10px" /> - - Also as with other functions, if you would like the tag to contain - additional data like JavaScript, you can pass it as a string in the - fourth parameter:: - - $js = 'onClick="some_function()"'; - echo form_checkbox('newsletter', 'accept', TRUE, $js); - - Or you can pass it as an array:: - - $js = array('onClick' => 'some_function();'); - echo form_checkbox('newsletter', 'accept', TRUE, $js); - - -.. php:function:: form_radio([$data = ''[, $value = ''[, $checked = FALSE[, $extra = '']]]]) - - :param array $data: Field attributes data - :param string $value: Field value - :param bool $checked: Whether to mark the radio button as being *checked* - :param mixed $extra: Extra attributes to be added to the tag either as an array or a literal string - :returns: An HTML radio input tag - :rtype: string - - This function is identical in all respects to the :php:func:`form_checkbox()` - function above except that it uses the "radio" input type. - - -.. php:function:: form_label([$label_text = ''[, $id = ''[, $attributes = array()]]]) - - :param string $label_text: Text to put in the <label> tag - :param string $id: ID of the form element that we're making a label for - :param mixed $attributes: HTML attributes - :returns: An HTML field label tag - :rtype: string - - Lets you generate a <label>. Simple example:: - - echo form_label('What is your Name', 'username'); - // Would produce: <label for="username">What is your Name</label> - - Similar to other functions, you can submit an associative array in the - third parameter if you prefer to set additional attributes. - - Example:: - - $attributes = array( - 'class' => 'mycustomclass', - 'style' => 'color: #000;' - ); - - echo form_label('What is your Name', 'username', $attributes); - // Would produce: <label for="username" class="mycustomclass" style="color: #000;">What is your Name</label> - - -.. php:function:: form_submit([$data = ''[, $value = ''[, $extra = '']]]) - - :param string $data: Button name - :param string $value: Button value - :param mixed $extra: Extra attributes to be added to the tag either as an array or a literal string - :returns: An HTML input submit tag - :rtype: string - - Lets you generate a standard submit button. Simple example:: - - echo form_submit('mysubmit', 'Submit Post!'); - // Would produce: <input type="submit" name="mysubmit" value="Submit Post!" /> - - Similar to other functions, you can submit an associative array in the - first parameter if you prefer to set your own attributes. The third - parameter lets you add extra data to your form, like JavaScript. - - -.. php:function:: form_reset([$data = ''[, $value = ''[, $extra = '']]]) - - :param string $data: Button name - :param string $value: Button value - :param mixed $extra: Extra attributes to be added to the tag either as an array or a literal string - :returns: An HTML input reset button tag - :rtype: string - - Lets you generate a standard reset button. Use is identical to - :func:`form_submit()`. - - -.. php:function:: form_button([$data = ''[, $content = ''[, $extra = '']]]) - - :param string $data: Button name - :param string $content: Button label - :param mixed $extra: Extra attributes to be added to the tag either as an array or a literal string - :returns: An HTML button tag - :rtype: string - - Lets you generate a standard button element. You can minimally pass the - button name and content in the first and second parameter:: - - echo form_button('name','content'); - // Would produce: <button name="name" type="button">Content</button> - - Or you can pass an associative array containing any data you wish your - form to contain:: - - $data = array( - 'name' => 'button', - 'id' => 'button', - 'value' => 'true', - 'type' => 'reset', - 'content' => 'Reset' - ); - - echo form_button($data); - // Would produce: <button name="button" id="button" value="true" type="reset">Reset</button> - - If you would like your form to contain some additional data, like - JavaScript, you can pass it as a string in the third parameter:: - - $js = 'onClick="some_function()"'; - echo form_button('mybutton', 'Click Me', $js); - - -.. php:function:: form_close([$extra = '']) - - :param string $extra: Anything to append after the closing tag, *as is* - :returns: An HTML form closing tag - :rtype: string - - Produces a closing </form> tag. The only advantage to using this - function is it permits you to pass data to it which will be added below - the tag. For example:: - - $string = '</div></div>'; - echo form_close($string); - // Would produce: </form> </div></div> - - -.. php:function:: set_value($field[, $default = ''[, $html_escape = TRUE]]) - - :param string $field: Field name - :param string $default: Default value - :param bool $html_escape: Whether to turn off HTML escaping of the value - :returns: Field value - :rtype: string - - Permits you to set the value of an input form or textarea. You must - supply the field name via the first parameter of the function. The - second (optional) parameter allows you to set a default value for the - form. The third (optional) parameter allows you to turn off HTML escaping - of the value, in case you need to use this function in combination with - i.e. :php:func:`form_input()` and avoid double-escaping. - - Example:: - - <input type="text" name="quantity" value="<?php echo set_value('quantity', '0'); ?>" size="50" /> - - The above form will show "0" when loaded for the first time. - - .. note:: If you've loaded the :doc:`Form Validation Library <../libraries/form_validation>` and - have set a validation rule for the field name in use with this helper, then it will - forward the call to the :doc:`Form Validation Library <../libraries/form_validation>`'s - own ``set_value()`` method. Otherwise, this function looks in ``$_POST`` for the - field value. - -.. php:function:: set_select($field[, $value = ''[, $default = FALSE]]) - - :param string $field: Field name - :param string $value: Value to check for - :param string $default: Whether the value is also a default one - :returns: 'selected' attribute or an empty string - :rtype: string - - If you use a <select> menu, this function permits you to display the - menu item that was selected. - - The first parameter must contain the name of the select menu, the second - parameter must contain the value of each item, and the third (optional) - parameter lets you set an item as the default (use boolean TRUE/FALSE). - - Example:: - - <select name="myselect"> - <option value="one" <?php echo set_select('myselect', 'one', TRUE); ?> >One</option> - <option value="two" <?php echo set_select('myselect', 'two'); ?> >Two</option> - <option value="three" <?php echo set_select('myselect', 'three'); ?> >Three</option> - </select> - -.. php:function:: set_checkbox($field[, $value = ''[, $default = FALSE]]) - - :param string $field: Field name - :param string $value: Value to check for - :param string $default: Whether the value is also a default one - :returns: 'checked' attribute or an empty string - :rtype: string - - Permits you to display a checkbox in the state it was submitted. - - The first parameter must contain the name of the checkbox, the second - parameter must contain its value, and the third (optional) parameter - lets you set an item as the default (use boolean TRUE/FALSE). - - Example:: - - <input type="checkbox" name="mycheck" value="1" <?php echo set_checkbox('mycheck', '1'); ?> /> - <input type="checkbox" name="mycheck" value="2" <?php echo set_checkbox('mycheck', '2'); ?> /> - -.. php:function:: set_radio($field[, $value = ''[, $default = FALSE]]) - - :param string $field: Field name - :param string $value: Value to check for - :param string $default: Whether the value is also a default one - :returns: 'checked' attribute or an empty string - :rtype: string - - Permits you to display radio buttons in the state they were submitted. - This function is identical to the :php:func:`set_checkbox()` function above. - - Example:: - - <input type="radio" name="myradio" value="1" <?php echo set_radio('myradio', '1', TRUE); ?> /> - <input type="radio" name="myradio" value="2" <?php echo set_radio('myradio', '2'); ?> /> - - .. note:: If you are using the Form Validation class, you must always specify - a rule for your field, even if empty, in order for the ``set_*()`` - functions to work. This is because if a Form Validation object is - defined, the control for ``set_*()`` is handed over to a method of the - class instead of the generic helper function. - -.. php:function:: form_error([$field = ''[, $prefix = ''[, $suffix = '']]]) - - :param string $field: Field name - :param string $prefix: Error opening tag - :param string $suffix: Error closing tag - :returns: HTML-formatted form validation error message(s) - :rtype: string - - Returns a validation error message from the :doc:`Form Validation Library - <../libraries/form_validation>`, associated with the specified field name. - You can optionally specify opening and closing tag(s) to put around the error - message. - - Example:: - - // Assuming that the 'username' field value was incorrect: - echo form_error('myfield', '<div class="error">', '</div>'); - - // Would produce: <div class="error">Error message associated with the "username" field.</div> - - -.. php:function:: validation_errors([$prefix = ''[, $suffix = '']]) - - :param string $prefix: Error opening tag - :param string $suffix: Error closing tag - :returns: HTML-formatted form validation error message(s) - :rtype: string - - Similarly to the :php:func:`form_error()` function, returns all validation - error messages produced by the :doc:`Form Validation Library - <../libraries/form_validation>`, with optional opening and closing tags - around each of the messages. - - Example:: - - echo validation_errors('<span class="error">', '</span>'); - - /* - Would produce, e.g.: - - <span class="error">The "email" field doesn't contain a valid e-mail address!</span> - <span class="error">The "password" field doesn't match the "repeat_password" field!</span> - - */ - -.. php:function:: form_prep($str) - - :param string $str: Value to escape - :returns: Escaped value - :rtype: string - - Allows you to safely use HTML and characters such as quotes within form - elements without breaking out of the form. - - .. note:: If you use any of the form helper functions listed in this page the form - values will be prepped automatically, so there is no need to call this - function. Use it only if you are creating your own form elements. - - .. note:: This function is DEPRECATED and is just an alias for - :doc:`common function <../general/common_functions>` - :func:`html_escape()` - please use that instead. diff --git a/user_guide_src/source/helpers/html_helper.rst b/user_guide_src/source/helpers/html_helper.rst deleted file mode 100644 index 2c748bea0..000000000 --- a/user_guide_src/source/helpers/html_helper.rst +++ /dev/null @@ -1,407 +0,0 @@ -########### -HTML Helper -########### - -The HTML Helper file contains functions that assist in working with -HTML. - -.. contents:: - :local: - -.. raw:: html - - <div class="custom-index container"></div> - -Loading this Helper -=================== - -This helper is loaded using the following code:: - - $this->load->helper('html'); - -Available Functions -=================== - -The following functions are available: - - -.. php:function:: heading([$data = ''[, $h = '1'[, $attributes = '']]]) - - :param string $data: Content - :param string $h: Heading level - :param mixed $attributes: HTML attributes - :returns: HTML heading tag - :rtype: string - - Lets you create HTML heading tags. The first parameter will contain the - data, the second the size of the heading. Example:: - - echo heading('Welcome!', 3); - - The above would produce: <h3>Welcome!</h3> - - Additionally, in order to add attributes to the heading tag such as HTML - classes, ids or inline styles, a third parameter accepts either a string - or an array:: - - echo heading('Welcome!', 3, 'class="pink"'); - echo heading('How are you?', 4, array('id' => 'question', 'class' => 'green')); - - The above code produces: - - .. code-block:: html - - <h3 class="pink">Welcome!<h3> - <h4 id="question" class="green">How are you?</h4> - -.. php:function:: img([$src = ''[, $index_page = FALSE[, $attributes = '']]]) - - :param string $src: Image source data - :param bool $index_page: Whether to treat $src as a routed URI string - :param array $attributes: HTML attributes - :returns: HTML image tag - :rtype: string - - Lets you create HTML <img /> tags. The first parameter contains the - image source. Example:: - - echo img('images/picture.jpg'); // gives <img src="http://site.com/images/picture.jpg" /> - - There is an optional second parameter that is a TRUE/FALSE value that - specifics if the *src* should have the page specified by - ``$config['index_page']`` added to the address it creates. - Presumably, this would be if you were using a media controller:: - - echo img('images/picture.jpg', TRUE); // gives <img src="http://site.com/index.php/images/picture.jpg" alt="" /> - - Additionally, an associative array can be passed to the ``img()`` function - for complete control over all attributes and values. If an *alt* attribute - is not provided, CodeIgniter will generate an empty string. - - Example:: - - $image_properties = array( - 'src' => 'images/picture.jpg', - 'alt' => 'Me, demonstrating how to eat 4 slices of pizza at one time', - 'class' => 'post_images', - 'width' => '200', - 'height'=> '200', - 'title' => 'That was quite a night', - 'rel' => 'lightbox' - ); - - img($image_properties); - // <img src="http://site.com/index.php/images/picture.jpg" alt="Me, demonstrating how to eat 4 slices of pizza at one time" class="post_images" width="200" height="200" title="That was quite a night" rel="lightbox" /> - -.. php:function:: link_tag([$href = ''[, $rel = 'stylesheet'[, $type = 'text/css'[, $title = ''[, $media = ''[, $index_page = FALSE]]]]]]) - - :param string $href: What are we linking to - :param string $rel: Relation type - :param string $type: Type of the related document - :param string $title: Link title - :param string $media: Media type - :param bool $index_page: Whether to treat $src as a routed URI string - :returns: HTML link tag - :rtype: string - - Lets you create HTML <link /> tags. This is useful for stylesheet links, - as well as other links. The parameters are *href*, with optional *rel*, - *type*, *title*, *media* and *index_page*. - - *index_page* is a boolean value that specifies if the *href* should have - the page specified by ``$config['index_page']`` added to the address it creates. - - Example:: - - echo link_tag('css/mystyles.css'); - // gives <link href="http://site.com/css/mystyles.css" rel="stylesheet" type="text/css" /> - - Further examples:: - - echo link_tag('favicon.ico', 'shortcut icon', 'image/ico'); - // <link href="http://site.com/favicon.ico" rel="shortcut icon" type="image/ico" /> - - echo link_tag('feed', 'alternate', 'application/rss+xml', 'My RSS Feed'); - // <link href="http://site.com/feed" rel="alternate" type="application/rss+xml" title="My RSS Feed" /> - - Additionally, an associative array can be passed to the ``link()`` function - for complete control over all attributes and values:: - - $link = array( - 'href' => 'css/printer.css', - 'rel' => 'stylesheet', - 'type' => 'text/css', - 'media' => 'print' - ); - - echo link_tag($link); - // <link href="http://site.com/css/printer.css" rel="stylesheet" type="text/css" media="print" /> - - -.. php:function:: ul($list[, $attributes = '']) - - :param array $list: List entries - :param array $attributes: HTML attributes - :returns: HTML-formatted unordered list - :rtype: string - - Permits you to generate unordered HTML lists from simple or - multi-dimensional arrays. Example:: - - $list = array( - 'red', - 'blue', - 'green', - 'yellow' - ); - - $attributes = array( - 'class' => 'boldlist', - 'id' => 'mylist' - ); - - echo ul($list, $attributes); - - The above code will produce this: - - .. code-block:: html - - <ul class="boldlist" id="mylist"> - <li>red</li> - <li>blue</li> - <li>green</li> - <li>yellow</li> - </ul> - - Here is a more complex example, using a multi-dimensional array:: - - $attributes = array( - 'class' => 'boldlist', - 'id' => 'mylist' - ); - - $list = array( - 'colors' => array( - 'red', - 'blue', - 'green' - ), - 'shapes' => array( - 'round', - 'square', - 'circles' => array( - 'ellipse', - 'oval', - 'sphere' - ) - ), - 'moods' => array( - 'happy', - 'upset' => array( - 'defeated' => array( - 'dejected', - 'disheartened', - 'depressed' - ), - 'annoyed', - 'cross', - 'angry' - ) - ) - ); - - echo ul($list, $attributes); - - The above code will produce this: - - .. code-block:: html - - <ul class="boldlist" id="mylist"> - <li>colors - <ul> - <li>red</li> - <li>blue</li> - <li>green</li> - </ul> - </li> - <li>shapes - <ul> - <li>round</li> - <li>suare</li> - <li>circles - <ul> - <li>elipse</li> - <li>oval</li> - <li>sphere</li> - </ul> - </li> - </ul> - </li> - <li>moods - <ul> - <li>happy</li> - <li>upset - <ul> - <li>defeated - <ul> - <li>dejected</li> - <li>disheartened</li> - <li>depressed</li> - </ul> - </li> - <li>annoyed</li> - <li>cross</li> - <li>angry</li> - </ul> - </li> - </ul> - </li> - </ul> - -.. php:function:: ol($list, $attributes = '') - - :param array $list: List entries - :param array $attributes: HTML attributes - :returns: HTML-formatted ordered list - :rtype: string - - Identical to :php:func:`ul()`, only it produces the <ol> tag for - ordered lists instead of <ul>. - -.. php:function:: meta([$name = ''[, $content = ''[, $type = 'name'[, $newline = "\n"]]]]) - - :param string $name: Meta name - :param string $content: Meta content - :param string $type: Meta type - :param string $newline: Newline character - :returns: HTML meta tag - :rtype: string - - Helps you generate meta tags. You can pass strings to the function, or - simple arrays, or multidimensional ones. - - Examples:: - - echo meta('description', 'My Great site'); - // Generates: <meta name="description" content="My Great Site" /> - - echo meta('Content-type', 'text/html; charset=utf-8', 'equiv'); - // Note the third parameter. Can be "equiv" or "name" - // Generates: <meta http-equiv="Content-type" content="text/html; charset=utf-8" /> - - echo meta(array('name' => 'robots', 'content' => 'no-cache')); - // Generates: <meta name="robots" content="no-cache" /> - - $meta = array( - array( - 'name' => 'robots', - 'content' => 'no-cache' - ), - array( - 'name' => 'description', - 'content' => 'My Great Site' - ), - array( - 'name' => 'keywords', - 'content' => 'love, passion, intrigue, deception' - ), - array( - 'name' => 'robots', - 'content' => 'no-cache' - ), - array( - 'name' => 'Content-type', - 'content' => 'text/html; charset=utf-8', 'type' => 'equiv' - ) - ); - - echo meta($meta); - // Generates: - // <meta name="robots" content="no-cache" /> - // <meta name="description" content="My Great Site" /> - // <meta name="keywords" content="love, passion, intrigue, deception" /> - // <meta name="robots" content="no-cache" /> - // <meta http-equiv="Content-type" content="text/html; charset=utf-8" /> - - -.. php:function:: doctype([$type = 'xhtml1-strict']) - - :param string $type: Doctype name - :returns: HTML DocType tag - :rtype: string - - Helps you generate document type declarations, or DTD's. XHTML 1.0 - Strict is used by default, but many doctypes are available. - - Example:: - - echo doctype(); // <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> - - echo doctype('html4-trans'); // <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> - - The following is a list of doctype choices. These are configurable, and - pulled from application/config/doctypes.php - - =============================== =================== ================================================================================================================================================== - Document type Option Result - =============================== =================== ================================================================================================================================================== - XHTML 1.1 xhtml11 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> - XHTML 1.0 Strict xhtml1-strict <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> - XHTML 1.0 Transitional xhtml1-trans <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> - XHTML 1.0 Frameset xhtml1-frame <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Frameset//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-frameset.dtd"> - XHTML Basic 1.1 xhtml-basic11 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML Basic 1.1//EN" "http://www.w3.org/TR/xhtml-basic/xhtml-basic11.dtd"> - HTML 5 html5 <!DOCTYPE html> - HTML 4 Strict html4-strict <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> - HTML 4 Transitional html4-trans <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> - HTML 4 Frameset html4-frame <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Frameset//EN" "http://www.w3.org/TR/html4/frameset.dtd"> - MathML 1.01 mathml1 <!DOCTYPE math SYSTEM "http://www.w3.org/Math/DTD/mathml1/mathml.dtd"> - MathML 2.0 mathml2 <!DOCTYPE math PUBLIC "-//W3C//DTD MathML 2.0//EN" "http://www.w3.org/Math/DTD/mathml2/mathml2.dtd"> - SVG 1.0 svg10 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.0//EN" "http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd"> - SVG 1.1 Full svg11 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"> - SVG 1.1 Basic svg11-basic <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1 Basic//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11-basic.dtd"> - SVG 1.1 Tiny svg11-tiny <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1 Tiny//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11-tiny.dtd"> - XHTML+MathML+SVG (XHTML host) xhtml-math-svg-xh <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1 plus MathML 2.0 plus SVG 1.1//EN" "http://www.w3.org/2002/04/xhtml-math-svg/xhtml-math-svg.dtd"> - XHTML+MathML+SVG (SVG host) xhtml-math-svg-sh <!DOCTYPE svg:svg PUBLIC "-//W3C//DTD XHTML 1.1 plus MathML 2.0 plus SVG 1.1//EN" "http://www.w3.org/2002/04/xhtml-math-svg/xhtml-math-svg.dtd"> - XHTML+RDFa 1.0 xhtml-rdfa-1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML+RDFa 1.0//EN" "http://www.w3.org/MarkUp/DTD/xhtml-rdfa-1.dtd"> - XHTML+RDFa 1.1 xhtml-rdfa-2 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML+RDFa 1.1//EN" "http://www.w3.org/MarkUp/DTD/xhtml-rdfa-2.dtd"> - =============================== =================== ================================================================================================================================================== - -.. php:function:: br([$count = 1]) - - :param int $count: Number of times to repeat the tag - :returns: HTML line break tag - :rtype: string - - Generates line break tags (<br />) based on the number you submit. - Example:: - - echo br(3); - - The above would produce: - - .. code-block:: html - - <br /><br /><br /> - - .. note:: This function is DEPRECATED. Use the native ``str_repeat()`` - in combination with ``<br />`` instead. - -.. php:function:: nbs([$num = 1]) - - :param int $num: Number of space entities to produce - :returns: A sequence of non-breaking space HTML entities - :rtype: string - - Generates non-breaking spaces ( ) based on the number you submit. - Example:: - - echo nbs(3); - - The above would produce: - - .. code-block:: html - - - - .. note:: This function is DEPRECATED. Use the native ``str_repeat()`` - in combination with `` `` instead. diff --git a/user_guide_src/source/helpers/index.rst b/user_guide_src/source/helpers/index.rst deleted file mode 100644 index f28c8e164..000000000 --- a/user_guide_src/source/helpers/index.rst +++ /dev/null @@ -1,9 +0,0 @@ -####### -Helpers -####### - -.. toctree:: - :glob: - :titlesonly: - - *
\ No newline at end of file diff --git a/user_guide_src/source/helpers/inflector_helper.rst b/user_guide_src/source/helpers/inflector_helper.rst deleted file mode 100644 index e3c014939..000000000 --- a/user_guide_src/source/helpers/inflector_helper.rst +++ /dev/null @@ -1,99 +0,0 @@ -################ -Inflector Helper -################ - -The Inflector Helper file contains functions that permits you to change -**English** words to plural, singular, camel case, etc. - -.. contents:: - :local: - -.. raw:: html - - <div class="custom-index container"></div> - -Loading this Helper -=================== - -This helper is loaded using the following code:: - - $this->load->helper('inflector'); - -Available Functions -=================== - -The following functions are available: - - -.. php:function:: singular($str) - - :param string $str: Input string - :returns: A singular word - :rtype: string - - Changes a plural word to singular. Example:: - - echo singular('dogs'); // Prints 'dog' - -.. php:function:: plural($str) - - :param string $str: Input string - :returns: A plural word - :rtype: string - - Changes a singular word to plural. Example:: - - echo plural('dog'); // Prints 'dogs' - -.. php:function:: camelize($str) - - :param string $str: Input string - :returns: Camelized string - :rtype: string - - Changes a string of words separated by spaces or underscores to camel - case. Example:: - - echo camelize('my_dog_spot'); // Prints 'myDogSpot' - -.. php:function:: underscore($str) - - :param string $str: Input string - :returns: String containing underscores instead of spaces - :rtype: string - - Takes multiple words separated by spaces and underscores them. - Example:: - - echo underscore('my dog spot'); // Prints 'my_dog_spot' - -.. php:function:: humanize($str[, $separator = '_']) - - :param string $str: Input string - :param string $separator: Input separator - :returns: Humanized string - :rtype: string - - Takes multiple words separated by underscores and adds spaces between - them. Each word is capitalized. - - Example:: - - echo humanize('my_dog_spot'); // Prints 'My Dog Spot' - - To use dashes instead of underscores:: - - echo humanize('my-dog-spot', '-'); // Prints 'My Dog Spot' - -.. php:function:: word_is_countable($word) - - :param string $word: Input string - :returns: TRUE if the word is countable or FALSE if not - :rtype: bool - - Checks if the given word has a plural version. Example:: - - word_is_countable('equipment'); // Returns FALSE - - .. note:: This function used to be called ``is_countable()`` in - in previous CodeIgniter versions. diff --git a/user_guide_src/source/helpers/language_helper.rst b/user_guide_src/source/helpers/language_helper.rst deleted file mode 100644 index cfbd6c057..000000000 --- a/user_guide_src/source/helpers/language_helper.rst +++ /dev/null @@ -1,46 +0,0 @@ -############### -Language Helper -############### - -The Language Helper file contains functions that assist in working with -language files. - -.. contents:: - :local: - -.. raw:: html - - <div class="custom-index container"></div> - -Loading this Helper -=================== - -This helper is loaded using the following code:: - - $this->load->helper('language'); - -Available Functions -=================== - -The following functions are available: - - -.. php:function:: lang($line[, $for = ''[, $attributes = array()]]) - - :param string $line: Language line key - :param string $for: HTML "for" attribute (ID of the element we're creating a label for) - :param array $attributes: Any additional HTML attributes - :returns: The language line; in an HTML label tag, if the ``$for`` parameter is not empty - :rtype: string - - This function returns a line of text from a loaded language file with - simplified syntax that may be more desirable for view files than - ``CI_Lang::line()``. - - Examples:: - - echo lang('language_key'); - // Outputs: Language line - - echo lang('language_key', 'form_item_id', array('class' => 'myClass')); - // Outputs: <label for="form_item_id" class="myClass">Language line</label>
\ No newline at end of file diff --git a/user_guide_src/source/helpers/number_helper.rst b/user_guide_src/source/helpers/number_helper.rst deleted file mode 100644 index 9d5e98cfb..000000000 --- a/user_guide_src/source/helpers/number_helper.rst +++ /dev/null @@ -1,52 +0,0 @@ -############# -Number Helper -############# - -The Number Helper file contains functions that help you work with -numeric data. - -.. contents:: - :local: - -.. raw:: html - - <div class="custom-index container"></div> - -Loading this Helper -=================== - -This helper is loaded using the following code:: - - $this->load->helper('number'); - -Available Functions -=================== - -The following functions are available: - - -.. php:function:: byte_format($num[, $precision = 1]) - - :param mixed $num: Number of bytes - :param int $precision: Floating point precision - :returns: Formatted data size string - :rtype: string - - Formats numbers as bytes, based on size, and adds the appropriate - suffix. Examples:: - - echo byte_format(456); // Returns 456 Bytes - echo byte_format(4567); // Returns 4.5 KB - echo byte_format(45678); // Returns 44.6 KB - echo byte_format(456789); // Returns 447.8 KB - echo byte_format(3456789); // Returns 3.3 MB - echo byte_format(12345678912345); // Returns 1.8 GB - echo byte_format(123456789123456789); // Returns 11,228.3 TB - - An optional second parameter allows you to set the precision of the - result:: - - echo byte_format(45678, 2); // Returns 44.61 KB - - .. note:: The text generated by this function is found in the following - language file: *language/<your_lang>/number_lang.php*
\ No newline at end of file diff --git a/user_guide_src/source/helpers/path_helper.rst b/user_guide_src/source/helpers/path_helper.rst deleted file mode 100644 index f46cbad44..000000000 --- a/user_guide_src/source/helpers/path_helper.rst +++ /dev/null @@ -1,53 +0,0 @@ -########### -Path Helper -########### - -The Path Helper file contains functions that permits you to work with -file paths on the server. - -.. contents:: - :local: - -.. raw:: html - - <div class="custom-index container"></div> - -Loading this Helper -=================== - -This helper is loaded using the following code:: - - $this->load->helper('path'); - -Available Functions -=================== - -The following functions are available: - - -.. php:function:: set_realpath($path[, $check_existance = FALSE]) - - :param string $path: Path - :param bool $check_existance: Whether to check if the path actually exists - :returns: An absolute path - :rtype: string - - This function will return a server path without symbolic links or - relative directory structures. An optional second argument will - cause an error to be triggered if the path cannot be resolved. - - Examples:: - - $file = '/etc/php5/apache2/php.ini'; - echo set_realpath($file); // Prints '/etc/php5/apache2/php.ini' - - $non_existent_file = '/path/to/non-exist-file.txt'; - echo set_realpath($non_existent_file, TRUE); // Shows an error, as the path cannot be resolved - echo set_realpath($non_existent_file, FALSE); // Prints '/path/to/non-exist-file.txt' - - $directory = '/etc/php5'; - echo set_realpath($directory); // Prints '/etc/php5/' - - $non_existent_directory = '/path/to/nowhere'; - echo set_realpath($non_existent_directory, TRUE); // Shows an error, as the path cannot be resolved - echo set_realpath($non_existent_directory, FALSE); // Prints '/path/to/nowhere'
\ No newline at end of file diff --git a/user_guide_src/source/helpers/security_helper.rst b/user_guide_src/source/helpers/security_helper.rst deleted file mode 100644 index 103880cf9..000000000 --- a/user_guide_src/source/helpers/security_helper.rst +++ /dev/null @@ -1,106 +0,0 @@ -############### -Security Helper -############### - -The Security Helper file contains security related functions. - -.. contents:: - :local: - -.. raw:: html - - <div class="custom-index container"></div> - -Loading this Helper -=================== - -This helper is loaded using the following code:: - - $this->load->helper('security'); - -Available Functions -=================== - -The following functions are available: - - -.. php:function:: xss_clean($str[, $is_image = FALSE]) - - :param string $str: Input data - :param bool $is_image: Whether we're dealing with an image - :returns: XSS-clean string - :rtype: string - - Provides Cross Site Script Hack filtering. - - This function is an alias for ``CI_Input::xss_clean()``. For more info, - please see the :doc:`Input Library <../libraries/input>` documentation. - -.. php:function:: sanitize_filename($filename) - - :param string $filename: Filename - :returns: Sanitized file name - :rtype: string - - Provides protection against directory traversal. - - This function is an alias for ``CI_Security::sanitize_filename()``. - For more info, please see the :doc:`Security Library <../libraries/security>` - documentation. - - -.. php:function:: do_hash($str[, $type = 'sha1']) - - :param string $str: Input - :param string $type: Algorithm - :returns: Hex-formatted hash - :rtype: string - - Permits you to create one way hashes suitable for encrypting - passwords. Will use SHA1 by default. - - See `hash_algos() <http://php.net/function.hash_algos>`_ - for a full list of supported algorithms. - - Examples:: - - $str = do_hash($str); // SHA1 - $str = do_hash($str, 'md5'); // MD5 - - .. note:: This function was formerly named ``dohash()``, which has been - removed in favor of ``do_hash()``. - - .. note:: This function is DEPRECATED. Use the native ``hash()`` instead. - - -.. php:function:: strip_image_tags($str) - - :param string $str: Input string - :returns: The input string with no image tags - :rtype: string - - This is a security function that will strip image tags from a string. - It leaves the image URL as plain text. - - Example:: - - $string = strip_image_tags($string); - - This function is an alias for ``CI_Security::strip_image_tags()``. For - more info, please see the :doc:`Security Library <../libraries/security>` - documentation. - - -.. php:function:: encode_php_tags($str) - - :param string $str: Input string - :returns: Safely formatted string - :rtype: string - - This is a security function that converts PHP tags to entities. - - .. note:: :php:func:`xss_clean()` does this automatically, if you use it. - - Example:: - - $string = encode_php_tags($string);
\ No newline at end of file diff --git a/user_guide_src/source/helpers/smiley_helper.rst b/user_guide_src/source/helpers/smiley_helper.rst deleted file mode 100644 index 3e7669942..000000000 --- a/user_guide_src/source/helpers/smiley_helper.rst +++ /dev/null @@ -1,169 +0,0 @@ -############# -Smiley Helper -############# - -The Smiley Helper file contains functions that let you manage smileys -(emoticons). - -.. important:: The Smiley helper is DEPRECATED and should not be used. - It is currently only kept for backwards compatibility. - -.. contents:: - :local: - -.. raw:: html - - <div class="custom-index container"></div> - -Loading this Helper -=================== - -This helper is loaded using the following code:: - - $this->load->helper('smiley'); - -Overview -======== - -The Smiley helper has a renderer that takes plain text smileys, like -:-) and turns them into a image representation, like |smile!| - -It also lets you display a set of smiley images that when clicked will -be inserted into a form field. For example, if you have a blog that -allows user commenting you can show the smileys next to the comment -form. Your users can click a desired smiley and with the help of some -JavaScript it will be placed into the form field. - -Clickable Smileys Tutorial -========================== - -Here is an example demonstrating how you might create a set of clickable -smileys next to a form field. This example requires that you first -download and install the smiley images, then create a controller and the -View as described. - -.. important:: Before you begin, please `download the smiley images - <https://ellislab.com/asset/ci_download_files/smileys.zip>`_ - and put them in a publicly accessible place on your server. - This helper also assumes you have the smiley replacement array - located at `application/config/smileys.php` - -The Controller --------------- - -In your **application/controllers/** directory, create a file called -Smileys.php and place the code below in it. - -.. important:: Change the URL in the :php:func:`get_clickable_smileys()` - function below so that it points to your smiley folder. - -You'll notice that in addition to the smiley helper, we are also using -the :doc:`Table Class <../libraries/table>`:: - - <?php - - class Smileys extends CI_Controller { - - public function index() - { - $this->load->helper('smiley'); - $this->load->library('table'); - - $image_array = get_clickable_smileys('http://example.com/images/smileys/', 'comments'); - $col_array = $this->table->make_columns($image_array, 8); - - $data['smiley_table'] = $this->table->generate($col_array); - $this->load->view('smiley_view', $data); - } - - } - -In your **application/views/** directory, create a file called **smiley_view.php** -and place this code in it:: - - <html> - <head> - <title>Smileys</title> - <?php echo smiley_js(); ?> - </head> - <body> - <form name="blog"> - <textarea name="comments" id="comments" cols="40" rows="4"></textarea> - </form> - <p>Click to insert a smiley!</p> - <?php echo $smiley_table; ?> </body> </html> - When you have created the above controller and view, load it by visiting http://www.example.com/index.php/smileys/ - </body> - </html> - -Field Aliases -------------- - -When making changes to a view it can be inconvenient to have the field -id in the controller. To work around this, you can give your smiley -links a generic name that will be tied to a specific id in your view. - -:: - - $image_array = get_smiley_links("http://example.com/images/smileys/", "comment_textarea_alias"); - -To map the alias to the field id, pass them both into the -:func:`smiley_js()` function:: - - $image_array = smiley_js("comment_textarea_alias", "comments"); - -Available Functions -=================== - -.. php:function:: get_clickable_smileys($image_url[, $alias = ''[, $smileys = NULL]]) - - :param string $image_url: URL path to the smileys directory - :param string $alias: Field alias - :returns: An array of ready to use smileys - :rtype: array - - Returns an array containing your smiley images wrapped in a clickable - link. You must supply the URL to your smiley folder and a field id or - field alias. - - Example:: - - $image_array = get_clickable_smileys('http://example.com/images/smileys/', 'comment'); - -.. php:function:: smiley_js([$alias = ''[, $field_id = ''[, $inline = TRUE]]]) - - :param string $alias: Field alias - :param string $field_id: Field ID - :param bool $inline: Whether we're inserting an inline smiley - :returns: Smiley-enabling JavaScript code - :rtype: string - - Generates the JavaScript that allows the images to be clicked and - inserted into a form field. If you supplied an alias instead of an id - when generating your smiley links, you need to pass the alias and - corresponding form id into the function. This function is designed to be - placed into the <head> area of your web page. - - Example:: - - <?php echo smiley_js(); ?> - -.. php:function:: parse_smileys([$str = ''[, $image_url = ''[, $smileys = NULL]]]) - - :param string $str: Text containing smiley codes - :param string $image_url: URL path to the smileys directory - :param array $smileys: An array of smileys - :returns: Parsed smileys - :rtype: string - - Takes a string of text as input and replaces any contained plain text - smileys into the image equivalent. The first parameter must contain your - string, the second must contain the URL to your smiley folder - - Example:: - - $str = 'Here are some smileys: :-) ;-)'; - $str = parse_smileys($str, 'http://example.com/images/smileys/'); - echo $str; - -.. |smile!| image:: ../images/smile.gif
\ No newline at end of file diff --git a/user_guide_src/source/helpers/string_helper.rst b/user_guide_src/source/helpers/string_helper.rst deleted file mode 100644 index 6dabc60d3..000000000 --- a/user_guide_src/source/helpers/string_helper.rst +++ /dev/null @@ -1,223 +0,0 @@ -############# -String Helper -############# - -The String Helper file contains functions that assist in working with -strings. - -.. important:: Please note that these functions are NOT intended, nor - suitable to be used for any kind of security-related logic. - -.. contents:: - :local: - -.. raw:: html - - <div class="custom-index container"></div> - -Loading this Helper -=================== - -This helper is loaded using the following code:: - - $this->load->helper('string'); - -Available Functions -=================== - -The following functions are available: - - -.. php:function:: random_string([$type = 'alnum'[, $len = 8]]) - - :param string $type: Randomization type - :param int $len: Output string length - :returns: A random string - :rtype: string - - Generates a random string based on the type and length you specify. - Useful for creating passwords or generating random hashes. - - The first parameter specifies the type of string, the second parameter - specifies the length. The following choices are available: - - - **alpha**: A string with lower and uppercase letters only. - - **alnum**: Alpha-numeric string with lower and uppercase characters. - - **basic**: A random number based on ``mt_rand()``. - - **numeric**: Numeric string. - - **nozero**: Numeric string with no zeros. - - **md5**: An encrypted random number based on ``md5()`` (fixed length of 32). - - **sha1**: An encrypted random number based on ``sha1()`` (fixed length of 40). - - Usage example:: - - echo random_string('alnum', 16); - - .. note:: Usage of the *unique* and *encrypt* types is DEPRECATED. They - are just aliases for *md5* and *sha1* respectively. - -.. php:function:: increment_string($str[, $separator = '_'[, $first = 1]]) - - :param string $str: Input string - :param string $separator: Separator to append a duplicate number with - :param int $first: Starting number - :returns: An incremented string - :rtype: string - - Increments a string by appending a number to it or increasing the - number. Useful for creating "copies" or a file or duplicating database - content which has unique titles or slugs. - - Usage example:: - - echo increment_string('file', '_'); // "file_1" - echo increment_string('file', '-', 2); // "file-2" - echo increment_string('file_4'); // "file_5" - - -.. php:function:: alternator($args) - - :param mixed $args: A variable number of arguments - :returns: Alternated string(s) - :rtype: mixed - - Allows two or more items to be alternated between, when cycling through - a loop. Example:: - - for ($i = 0; $i < 10; $i++) - { - echo alternator('string one', 'string two'); - } - - You can add as many parameters as you want, and with each iteration of - your loop the next item will be returned. - - :: - - for ($i = 0; $i < 10; $i++) - { - echo alternator('one', 'two', 'three', 'four', 'five'); - } - - .. note:: To use multiple separate calls to this function simply call the - function with no arguments to re-initialize. - -.. php:function:: repeater($data[, $num = 1]) - - :param string $data: Input - :param int $num: Number of times to repeat - :returns: Repeated string - :rtype: string - - Generates repeating copies of the data you submit. Example:: - - $string = "\n"; - echo repeater($string, 30); - - The above would generate 30 newlines. - - .. note:: This function is DEPRECATED. Use the native ``str_repeat()`` - instead. - - -.. php:function:: reduce_double_slashes($str) - - :param string $str: Input string - :returns: A string with normalized slashes - :rtype: string - - Converts double slashes in a string to a single slash, except those - found in URL protocol prefixes (e.g. \http://). - - Example:: - - $string = "http://example.com//index.php"; - echo reduce_double_slashes($string); // results in "http://example.com/index.php" - - -.. php:function:: strip_slashes($data) - - :param mixed $data: Input string or an array of strings - :returns: String(s) with stripped slashes - :rtype: mixed - - Removes any slashes from an array of strings. - - Example:: - - $str = array( - 'question' => 'Is your name O\'reilly?', - 'answer' => 'No, my name is O\'connor.' - ); - - $str = strip_slashes($str); - - The above will return the following array:: - - array( - 'question' => "Is your name O'reilly?", - 'answer' => "No, my name is O'connor." - ); - - .. note:: For historical reasons, this function will also accept - and handle string inputs. This however makes it just an - alias for ``stripslashes()``. - -.. php:function:: trim_slashes($str) - - :param string $str: Input string - :returns: Slash-trimmed string - :rtype: string - - Removes any leading/trailing slashes from a string. Example:: - - $string = "/this/that/theother/"; - echo trim_slashes($string); // results in this/that/theother - - .. note:: This function is DEPRECATED. Use the native ``trim()`` instead: - | - | trim($str, '/'); - -.. php:function:: reduce_multiples($str[, $character = ''[, $trim = FALSE]]) - - :param string $str: Text to search in - :param string $character: Character to reduce - :param bool $trim: Whether to also trim the specified character - :returns: Reduced string - :rtype: string - - Reduces multiple instances of a particular character occurring directly - after each other. Example:: - - $string = "Fred, Bill,, Joe, Jimmy"; - $string = reduce_multiples($string,","); //results in "Fred, Bill, Joe, Jimmy" - - If the third parameter is set to TRUE it will remove occurrences of the - character at the beginning and the end of the string. Example:: - - $string = ",Fred, Bill,, Joe, Jimmy,"; - $string = reduce_multiples($string, ", ", TRUE); //results in "Fred, Bill, Joe, Jimmy" - -.. php:function:: quotes_to_entities($str) - - :param string $str: Input string - :returns: String with quotes converted to HTML entities - :rtype: string - - Converts single and double quotes in a string to the corresponding HTML - entities. Example:: - - $string = "Joe's \"dinner\""; - $string = quotes_to_entities($string); //results in "Joe's "dinner"" - - -.. php:function:: strip_quotes($str) - - :param string $str: Input string - :returns: String with quotes stripped - :rtype: string - - Removes single and double quotes from a string. Example:: - - $string = "Joe's \"dinner\""; - $string = strip_quotes($string); //results in "Joes dinner" diff --git a/user_guide_src/source/helpers/text_helper.rst b/user_guide_src/source/helpers/text_helper.rst deleted file mode 100644 index ef47882fb..000000000 --- a/user_guide_src/source/helpers/text_helper.rst +++ /dev/null @@ -1,230 +0,0 @@ -########### -Text Helper -########### - -The Text Helper file contains functions that assist in working with -text. - -.. contents:: - :local: - -.. raw:: html - - <div class="custom-index container"></div> - -Loading this Helper -=================== - -This helper is loaded using the following code:: - - $this->load->helper('text'); - -Available Functions -=================== - -The following functions are available: - -.. php:function:: word_limiter($str[, $limit = 100[, $end_char = '…']]) - - :param string $str: Input string - :param int $limit: Limit - :param string $end_char: End character (usually an ellipsis) - :returns: Word-limited string - :rtype: string - - Truncates a string to the number of *words* specified. Example:: - - $string = "Here is a nice text string consisting of eleven words."; - $string = word_limiter($string, 4); - // Returns: Here is a nice - - The third parameter is an optional suffix added to the string. By - default it adds an ellipsis. - - -.. php:function:: character_limiter($str[, $n = 500[, $end_char = '…']]) - - :param string $str: Input string - :param int $n: Number of characters - :param string $end_char: End character (usually an ellipsis) - :returns: Character-limited string - :rtype: string - - Truncates a string to the number of *characters* specified. It - maintains the integrity of words so the character count may be slightly - more or less than what you specify. - - Example:: - - $string = "Here is a nice text string consisting of eleven words."; - $string = character_limiter($string, 20); - // Returns: Here is a nice text string - - The third parameter is an optional suffix added to the string, if - undeclared this helper uses an ellipsis. - - .. note:: If you need to truncate to an exact number of characters please - see the :php:func:`ellipsize()` function below. - -.. php:function:: ascii_to_entities($str) - - :param string $str: Input string - :returns: A string with ASCII values converted to entities - :rtype: string - - Converts ASCII values to character entities, including high ASCII and MS - Word characters that can cause problems when used in a web page, so that - they can be shown consistently regardless of browser settings or stored - reliably in a database. There is some dependence on your server's - supported character sets, so it may not be 100% reliable in all cases, - but for the most part it should correctly identify characters outside - the normal range (like accented characters). - - Example:: - - $string = ascii_to_entities($string); - -.. php:function::entities_to_ascii($str[, $all = TRUE]) - - :param string $str: Input string - :param bool $all: Whether to convert unsafe entities as well - :returns: A string with HTML entities converted to ASCII characters - :rtype: string - - This function does the opposite of :php:func:`ascii_to_entities()`. - It turns character entities back into ASCII. - -.. php:function:: convert_accented_characters($str) - - :param string $str: Input string - :returns: A string with accented characters converted - :rtype: string - - Transliterates high ASCII characters to low ASCII equivalents. Useful - when non-English characters need to be used where only standard ASCII - characters are safely used, for instance, in URLs. - - Example:: - - $string = convert_accented_characters($string); - - .. note:: This function uses a companion config file - `application/config/foreign_chars.php` to define the to and - from array for transliteration. - -.. php:function:: word_censor($str, $censored[, $replacement = '']) - - :param string $str: Input string - :param array $censored: List of bad words to censor - :param string $replacement: What to replace bad words with - :returns: Censored string - :rtype: string - - Enables you to censor words within a text string. The first parameter - will contain the original string. The second will contain an array of - words which you disallow. The third (optional) parameter can contain - a replacement value for the words. If not specified they are replaced - with pound signs: ####. - - Example:: - - $disallowed = array('darn', 'shucks', 'golly', 'phooey'); - $string = word_censor($string, $disallowed, 'Beep!'); - -.. php:function:: highlight_code($str) - - :param string $str: Input string - :returns: String with code highlighted via HTML - :rtype: string - - Colorizes a string of code (PHP, HTML, etc.). Example:: - - $string = highlight_code($string); - - The function uses PHP's ``highlight_string()`` function, so the - colors used are the ones specified in your php.ini file. - - -.. php:function:: highlight_phrase($str, $phrase[, $tag_open = '<mark>'[, $tag_close = '</mark>']]) - - :param string $str: Input string - :param string $phrase: Phrase to highlight - :param string $tag_open: Opening tag used for the highlight - :param string $tag_close: Closing tag for the highlight - :returns: String with a phrase highlighted via HTML - :rtype: string - - Will highlight a phrase within a text string. The first parameter will - contain the original string, the second will contain the phrase you wish - to highlight. The third and fourth parameters will contain the - opening/closing HTML tags you would like the phrase wrapped in. - - Example:: - - $string = "Here is a nice text string about nothing in particular."; - echo highlight_phrase($string, "nice text", '<span style="color:#990000;">', '</span>'); - - The above code prints:: - - Here is a <span style="color:#990000;">nice text</span> string about nothing in particular. - - .. note:: This function used to use the ``<strong>`` tag by default. Older browsers - might not support the new HTML5 mark tag, so it is recommended that you - insert the following CSS code into your stylesheet if you need to support - such browsers:: - - mark { - background: #ff0; - color: #000; - }; - -.. php:function:: word_wrap($str[, $charlim = 76]) - - :param string $str: Input string - :param int $charlim: Character limit - :returns: Word-wrapped string - :rtype: string - - Wraps text at the specified *character* count while maintaining - complete words. - - Example:: - - $string = "Here is a simple string of text that will help us demonstrate this function."; - echo word_wrap($string, 25); - - // Would produce: - // Here is a simple string - // of text that will help us - // demonstrate this - // function. - -.. php:function:: ellipsize($str, $max_length[, $position = 1[, $ellipsis = '…']]) - - :param string $str: Input string - :param int $max_length: String length limit - :param mixed $position: Position to split at (int or float) - :param string $ellipsis: What to use as the ellipsis character - :returns: Ellipsized string - :rtype: string - - This function will strip tags from a string, split it at a defined - maximum length, and insert an ellipsis. - - The first parameter is the string to ellipsize, the second is the number - of characters in the final string. The third parameter is where in the - string the ellipsis should appear from 0 - 1, left to right. For - example. a value of 1 will place the ellipsis at the right of the - string, .5 in the middle, and 0 at the left. - - An optional forth parameter is the kind of ellipsis. By default, - … will be inserted. - - Example:: - - $str = 'this_string_is_entirely_too_long_and_might_break_my_design.jpg'; - echo ellipsize($str, 32, .5); - - Produces:: - - this_string_is_e…ak_my_design.jpg
\ No newline at end of file diff --git a/user_guide_src/source/helpers/typography_helper.rst b/user_guide_src/source/helpers/typography_helper.rst deleted file mode 100644 index 89730b03d..000000000 --- a/user_guide_src/source/helpers/typography_helper.rst +++ /dev/null @@ -1,75 +0,0 @@ -################# -Typography Helper -################# - -The Typography Helper file contains functions that help your format text -in semantically relevant ways. - -.. contents:: - :local: - -.. raw:: html - - <div class="custom-index container"></div> - -Loading this Helper -=================== - -This helper is loaded using the following code:: - - $this->load->helper('typography'); - -Available Functions -=================== - -The following functions are available: - - -.. php:function:: auto_typography($str[, $reduce_linebreaks = FALSE]) - - :param string $str: Input string - :param bool $reduce_linebreaks: Whether to reduce multiple instances of double newlines to two - :returns: HTML-formatted typography-safe string - :rtype: string - - Formats text so that it is semantically and typographically correct - HTML. - - This function is an alias for ``CI_Typography::auto_typography()``. - For more info, please see the :doc:`Typography Library - <../libraries/typography>` documentation. - - Usage example:: - - $string = auto_typography($string); - - .. note:: Typographic formatting can be processor intensive, particularly if - you have a lot of content being formatted. If you choose to use this - function you may want to consider :doc:`caching <../general/caching>` your - pages. - - -.. php:function:: nl2br_except_pre($str) - - :param string $str: Input string - :returns: String with HTML-formatted line breaks - :rtype: string - - Converts newlines to <br /> tags unless they appear within <pre> tags. - This function is identical to the native PHP ``nl2br()`` function, - except that it ignores <pre> tags. - - Usage example:: - - $string = nl2br_except_pre($string); - -.. php:function:: entity_decode($str, $charset = NULL) - - :param string $str: Input string - :param string $charset: Character set - :returns: String with decoded HTML entities - :rtype: string - - This function is an alias for ``CI_Security::entity_decode()``. - Fore more info, please see the :doc:`Security Library - <../libraries/security>` documentation.
\ No newline at end of file diff --git a/user_guide_src/source/helpers/url_helper.rst b/user_guide_src/source/helpers/url_helper.rst deleted file mode 100644 index e117d37c0..000000000 --- a/user_guide_src/source/helpers/url_helper.rst +++ /dev/null @@ -1,373 +0,0 @@ -########## -URL Helper -########## - -The URL Helper file contains functions that assist in working with URLs. - -.. contents:: - :local: - -.. raw:: html - - <div class="custom-index container"></div> - -Loading this Helper -=================== - -This helper is loaded using the following code:: - - $this->load->helper('url'); - -Available Functions -=================== - -The following functions are available: - -.. php:function:: site_url([$uri = ''[, $protocol = NULL]]) - - :param string $uri: URI string - :param string $protocol: Protocol, e.g. 'http' or 'https' - :returns: Site URL - :rtype: string - - Returns your site URL, as specified in your config file. The index.php - file (or whatever you have set as your site **index_page** in your config - file) will be added to the URL, as will any URI segments you pass to the - function, plus the **url_suffix** as set in your config file. - - You are encouraged to use this function any time you need to generate a - local URL so that your pages become more portable in the event your URL - changes. - - Segments can be optionally passed to the function as a string or an - array. Here is a string example:: - - echo site_url('news/local/123'); - - The above example would return something like: - *http://example.com/index.php/news/local/123* - - Here is an example of segments passed as an array:: - - $segments = array('news', 'local', '123'); - echo site_url($segments); - - This function is an alias for ``CI_Config::site_url()``. For more info, - please see the :doc:`Config Library <../libraries/config>` documentation. - -.. php:function:: base_url($uri = '', $protocol = NULL) - - :param string $uri: URI string - :param string $protocol: Protocol, e.g. 'http' or 'https' - :returns: Base URL - :rtype: string - - Returns your site base URL, as specified in your config file. Example:: - - echo base_url(); - - This function returns the same thing as :php:func:`site_url()`, without - the *index_page* or *url_suffix* being appended. - - Also like :php:func:`site_url()`, you can supply segments as a string or - an array. Here is a string example:: - - echo base_url("blog/post/123"); - - The above example would return something like: - *http://example.com/blog/post/123* - - This is useful because unlike :php:func:`site_url()`, you can supply a - string to a file, such as an image or stylesheet. For example:: - - echo base_url("images/icons/edit.png"); - - This would give you something like: - *http://example.com/images/icons/edit.png* - - This function is an alias for ``CI_Config::base_url()``. For more info, - please see the :doc:`Config Library <../libraries/config>` documentation. - -.. php:function:: current_url() - - :returns: The current URL - :rtype: string - - Returns the full URL (including segments) of the page being currently - viewed. - - .. note:: Calling this function is the same as doing this: - | - | site_url(uri_string()); - - -.. php:function:: uri_string() - - :returns: An URI string - :rtype: string - - Returns the URI segments of any page that contains this function. - For example, if your URL was this:: - - http://some-site.com/blog/comments/123 - - The function would return:: - - blog/comments/123 - - This function is an alias for ``CI_Config::uri_string()``. For more info, - please see the :doc:`Config Library <../libraries/config>` documentation. - - -.. php:function:: index_page() - - :returns: 'index_page' value - :rtype: mixed - - Returns your site **index_page**, as specified in your config file. - Example:: - - echo index_page(); - -.. php:function:: anchor($uri = '', $title = '', $attributes = '') - - :param string $uri: URI string - :param string $title: Anchor title - :param mixed $attributes: HTML attributes - :returns: HTML hyperlink (anchor tag) - :rtype: string - - Creates a standard HTML anchor link based on your local site URL. - - The first parameter can contain any segments you wish appended to the - URL. As with the :php:func:`site_url()` function above, segments can - be a string or an array. - - .. note:: If you are building links that are internal to your application - do not include the base URL (\http://...). This will be added - automatically from the information specified in your config file. - Include only the URI segments you wish appended to the URL. - - The second segment is the text you would like the link to say. If you - leave it blank, the URL will be used. - - The third parameter can contain a list of attributes you would like - added to the link. The attributes can be a simple string or an - associative array. - - Here are some examples:: - - echo anchor('news/local/123', 'My News', 'title="News title"'); - // Prints: <a href="http://example.com/index.php/news/local/123" title="News title">My News</a> - - echo anchor('news/local/123', 'My News', array('title' => 'The best news!')); - // Prints: <a href="http://example.com/index.php/news/local/123" title="The best news!">My News</a> - - echo anchor('', 'Click here'); - // Prints: <a href="http://example.com">Click Here</a> - - -.. php:function:: anchor_popup($uri = '', $title = '', $attributes = FALSE) - - :param string $uri: URI string - :param string $title: Anchor title - :param mixed $attributes: HTML attributes - :returns: Pop-up hyperlink - :rtype: string - - Nearly identical to the :php:func:`anchor()` function except that it - opens the URL in a new window. You can specify JavaScript window - attributes in the third parameter to control how the window is opened. - If the third parameter is not set it will simply open a new window with - your own browser settings. - - Here is an example with attributes:: - - $atts = array( - 'width' => 800, - 'height' => 600, - 'scrollbars' => 'yes', - 'status' => 'yes', - 'resizable' => 'yes', - 'screenx' => 0, - 'screeny' => 0, - 'window_name' => '_blank' - ); - - echo anchor_popup('news/local/123', 'Click Me!', $atts); - - .. note:: The above attributes are the function defaults so you only need to - set the ones that are different from what you need. If you want the - function to use all of its defaults simply pass an empty array in the - third parameter: - | - | echo anchor_popup('news/local/123', 'Click Me!', array()); - - .. note:: The **window_name** is not really an attribute, but an argument to - the JavaScript `window.open() <http://www.w3schools.com/jsref/met_win_open.asp>` - method, which accepts either a window name or a window target. - - .. note:: Any other attribute than the listed above will be parsed as an - HTML attribute to the anchor tag. - - -.. php:function:: mailto($email, $title = '', $attributes = '') - - :param string $email: E-mail address - :param string $title: Anchor title - :param mixed $attributes: HTML attributes - :returns: A "mail to" hyperlink - :rtype: string - - Creates a standard HTML e-mail link. Usage example:: - - echo mailto('me@my-site.com', 'Click Here to Contact Me'); - - As with the :php:func:`anchor()` tab above, you can set attributes using the - third parameter:: - - $attributes = array('title' => 'Mail me'); - echo mailto('me@my-site.com', 'Contact Me', $attributes); - -.. php:function:: safe_mailto($email, $title = '', $attributes = '') - - :param string $email: E-mail address - :param string $title: Anchor title - :param mixed $attributes: HTML attributes - :returns: A spam-safe "mail to" hyperlink - :rtype: string - - Identical to the :php:func:`mailto()` function except it writes an obfuscated - version of the *mailto* tag using ordinal numbers written with JavaScript to - help prevent the e-mail address from being harvested by spam bots. - -.. php:function:: auto_link($str, $type = 'both', $popup = FALSE) - - :param string $str: Input string - :param string $type: Link type ('email', 'url' or 'both') - :param bool $popup: Whether to create popup links - :returns: Linkified string - :rtype: string - - Automatically turns URLs and e-mail addresses contained in a string into - links. Example:: - - $string = auto_link($string); - - The second parameter determines whether URLs and e-mails are converted or - just one or the other. Default behavior is both if the parameter is not - specified. E-mail links are encoded as :php:func:`safe_mailto()` as shown - above. - - Converts only URLs:: - - $string = auto_link($string, 'url'); - - Converts only e-mail addresses:: - - $string = auto_link($string, 'email'); - - The third parameter determines whether links are shown in a new window. - The value can be TRUE or FALSE (boolean):: - - $string = auto_link($string, 'both', TRUE); - - -.. php:function:: url_title($str, $separator = '-', $lowercase = FALSE) - - :param string $str: Input string - :param string $separator: Word separator - :param bool $lowercase: Whether to transform the output string to lower-case - :returns: URL-formatted string - :rtype: string - - Takes a string as input and creates a human-friendly URL string. This is - useful if, for example, you have a blog in which you'd like to use the - title of your entries in the URL. Example:: - - $title = "What's wrong with CSS?"; - $url_title = url_title($title); - // Produces: Whats-wrong-with-CSS - - The second parameter determines the word delimiter. By default dashes - are used. Preferred options are: **-** (dash) or **_** (underscore) - - Example:: - - $title = "What's wrong with CSS?"; - $url_title = url_title($title, 'underscore'); - // Produces: Whats_wrong_with_CSS - - .. note:: Old usage of 'dash' and 'underscore' as the second parameter - is DEPRECATED. - - The third parameter determines whether or not lowercase characters are - forced. By default they are not. Options are boolean TRUE/FALSE. - - Example:: - - $title = "What's wrong with CSS?"; - $url_title = url_title($title, 'underscore', TRUE); - // Produces: whats_wrong_with_css - - -.. php:function:: prep_url($str = '') - - :param string $str: URL string - :returns: Protocol-prefixed URL string - :rtype: string - - This function will add \http:// in the event that a protocol prefix - is missing from a URL. - - Pass the URL string to the function like this:: - - $url = prep_url('example.com'); - - -.. php:function:: redirect($uri = '', $method = 'auto', $code = NULL) - - :param string $uri: URI string - :param string $method: Redirect method ('auto', 'location' or 'refresh') - :param string $code: HTTP Response code (usually 302 or 303) - :rtype: void - - Does a "header redirect" to the URI specified. If you specify the full - site URL that link will be built, but for local links simply providing - the URI segments to the controller you want to direct to will create the - link. The function will build the URL based on your config file values. - - The optional second parameter allows you to force a particular redirection - method. The available methods are **auto**, **location** and **refresh**, - with location being faster but less reliable on IIS servers. - The default is **auto**, which will attempt to intelligently choose the - method based on the server environment. - - The optional third parameter allows you to send a specific HTTP Response - Code - this could be used for example to create 301 redirects for search - engine purposes. The default Response Code is 302. The third parameter is - *only* available with **location** redirects, and not *refresh*. Examples:: - - if ($logged_in == FALSE) - { - redirect('/login/form/'); - } - - // with 301 redirect - redirect('/article/13', 'location', 301); - - .. note:: In order for this function to work it must be used before anything - is outputted to the browser since it utilizes server headers. - - .. note:: For very fine grained control over headers, you should use the - :doc:`Output Library </libraries/output>` ``set_header()`` method. - - .. note:: To IIS users: if you hide the `Server` HTTP header, the *auto* - method won't detect IIS, in that case it is advised you explicitly - use the **refresh** method. - - .. note:: When the **location** method is used, an HTTP status code of 303 - will *automatically* be selected when the page is currently accessed - via POST and HTTP/1.1 is used. - - .. important:: This function will terminate script execution. diff --git a/user_guide_src/source/helpers/xml_helper.rst b/user_guide_src/source/helpers/xml_helper.rst deleted file mode 100644 index 903e925c2..000000000 --- a/user_guide_src/source/helpers/xml_helper.rst +++ /dev/null @@ -1,55 +0,0 @@ -########## -XML Helper -########## - -The XML Helper file contains functions that assist in working with XML -data. - -.. contents:: - :local: - -.. raw:: html - - <div class="custom-index container"></div> - -Loading this Helper -=================== - -This helper is loaded using the following code - -:: - - $this->load->helper('xml'); - -Available Functions -=================== - -The following functions are available: - -.. php:function:: xml_convert($str[, $protect_all = FALSE]) - - :param string $str: the text string to convert - :param bool $protect_all: Whether to protect all content that looks like a potential entity instead of just numbered entities, e.g. &foo; - :returns: XML-converted string - :rtype: string - - Takes a string as input and converts the following reserved XML - characters to entities: - - - Ampersands: & - - Less than and greater than characters: < > - - Single and double quotes: ' " - - Dashes: - - - This function ignores ampersands if they are part of existing numbered - character entities, e.g. {. Example:: - - $string = '<p>Here is a paragraph & an entity ({).</p>'; - $string = xml_convert($string); - echo $string; - - outputs: - - .. code-block:: html - - <p>Here is a paragraph & an entity ({).</p>
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