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| author | Joël Cox <joel@joelcox.nl> | 2011-10-09 18:39:39 +0200 |
|---|---|---|
| committer | Joël Cox <joel@joelcox.nl> | 2011-10-09 18:39:39 +0200 |
| commit | f4fb1db458fab52d0493ead52c9ea7e01206eaa7 (patch) | |
| tree | c549600f342f4d3f0df75a2f2f7c265be0f1cc72 /user_guide/helpers/date_helper.html | |
| parent | c4dd200c1155a118afa32cd91d9bd67bc243f83a (diff) | |
Moved tutorial to new user guide directory.
Diffstat (limited to 'user_guide/helpers/date_helper.html')
| -rw-r--r-- | user_guide/helpers/date_helper.html | 422 |
1 files changed, 0 insertions, 422 deletions
diff --git a/user_guide/helpers/date_helper.html b/user_guide/helpers/date_helper.html deleted file mode 100644 index 5b00e25e0..000000000 --- a/user_guide/helpers/date_helper.html +++ /dev/null @@ -1,422 +0,0 @@ -<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> -<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> -<head> - -<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> -<title>Date Helper : CodeIgniter User Guide</title> - -<style type='text/css' media='all'>@import url('../userguide.css');</style> -<link rel='stylesheet' type='text/css' media='all' href='../userguide.css' /> - -<script type="text/javascript" src="../nav/nav.js"></script> -<script type="text/javascript" src="../nav/prototype.lite.js"></script> -<script type="text/javascript" src="../nav/moo.fx.js"></script> -<script type="text/javascript" src="../nav/user_guide_menu.js"></script> - -<meta http-equiv='expires' content='-1' /> -<meta http-equiv= 'pragma' content='no-cache' /> -<meta name='robots' content='all' /> -<meta name='author' content='ExpressionEngine Dev Team' /> -<meta name='description' content='CodeIgniter User Guide' /> - -</head> -<body> - -<!-- START NAVIGATION --> -<div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div> -<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div> -<div id="masthead"> -<table cellpadding="0" cellspacing="0" border="0" style="width:100%"> -<tr> -<td><h1>CodeIgniter User Guide Version 2.0.3</h1></td> -<td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td> -</tr> -</table> -</div> -<!-- END NAVIGATION --> - - -<!-- START BREADCRUMB --> -<table cellpadding="0" cellspacing="0" border="0" style="width:100%"> -<tr> -<td id="breadcrumb"> -<a href="http://codeigniter.com/">CodeIgniter Home</a> › -<a href="../index.html">User Guide Home</a> › -Date Helper -</td> -<td id="searchbox"><form method="get" action="http://www.google.com/search"><input type="hidden" name="as_sitesearch" id="as_sitesearch" value="codeigniter.com/user_guide/" />Search User Guide <input type="text" class="input" style="width:200px;" name="q" id="q" size="31" maxlength="255" value="" /> <input type="submit" class="submit" name="sa" value="Go" /></form></td> -</tr> -</table> -<!-- END BREADCRUMB --> - -<br clear="all" /> - - -<!-- START CONTENT --> -<div id="content"> - - -<h1>Date Helper</h1> - -<p>The Date Helper file contains functions that help you work with dates.</p> - - -<h2>Loading this Helper</h2> - -<p>This helper is loaded using the following code:</p> -<code>$this->load->helper('date');</code> - - -<p>The following functions are available:</p> - -<h2>now()</h2> - -<p>Returns the current time as a Unix timestamp, referenced either to your server's local time or GMT, based on the "time reference" -setting in your config file. If you do not intend to set your master time reference to GMT (which you'll typically do if you -run a site that lets each user set their own timezone settings) there is no benefit to using this function over PHP's time() function. -</p> - - - - -<h2>mdate()</h2> - -<p>This function is identical to PHPs <a href="http://www.php.net/date">date()</a> function, except that it lets you -use MySQL style date codes, where each code letter is preceded with a percent sign: %Y %m %d etc.</p> - -<p>The benefit of doing dates this way is that you don't have to worry about escaping any characters that -are not date codes, as you would normally have to do with the date() function. Example:</p> - -<code>$datestring = "Year: %Y Month: %m Day: %d - %h:%i %a";<br /> -$time = time();<br /> -<br /> -echo mdate($datestring, $time);</code> - -<p>If a timestamp is not included in the second parameter the current time will be used.</p> - - -<h2>standard_date()</h2> - -<p>Lets you generate a date string in one of several standardized formats. Example:</p> - -<code> -$format = 'DATE_RFC822';<br /> -$time = time();<br /> -<br /> -echo standard_date($format, $time); -</code> - -<p>The first parameter must contain the format, the second parameter must contain the date as a Unix timestamp.</p> - -<p>Supported formats:</p> - -<table cellpadding="0" cellspacing="1" border="0" style="width:100%" class="tableborder"> - <tr> - <th>Constant</th> - <th>Description</th> - <th>Example</th> - </tr> - <tr> - <td>DATE_ATOM</td> - <td>Atom</td> - <td>2005-08-15T16:13:03+0000</td> - </tr> - <tr> - <td>DATE_COOKIE</td> - <td>HTTP Cookies</td> - <td>Sun, 14 Aug 2005 16:13:03 UTC</td> - </tr> - <tr> - <td>DATE_ISO8601</td> - <td>ISO-8601</td> - <td>2005-08-14T16:13:03+00:00</td> - </tr> - <tr> - <td>DATE_RFC822</td> - <td>RFC 822</td> - <td>Sun, 14 Aug 05 16:13:03 UTC</td> - </tr> - <tr> - <td>DATE_RFC850</td> - <td>RFC 850</td> - <td>Sunday, 14-Aug-05 16:13:03 UTC</td> - </tr> - <tr> - <td>DATE_RFC1036</td> - <td>RFC 1036</td> - <td>Sunday, 14-Aug-05 16:13:03 UTC</td> - </tr> - <tr> - <td>DATE_RFC1123</td> - <td>RFC 1123</td> - <td>Sun, 14 Aug 2005 16:13:03 UTC</td> - </tr> - <tr> - <td>DATE_RFC2822</td> - <td>RFC 2822</td> - <td>Sun, 14 Aug 2005 16:13:03 +0000</td> - </tr> - <tr> - <td>DATE_RSS</td> - <td>RSS</td> - <td>Sun, 14 Aug 2005 16:13:03 UTC</td> - </tr> - <tr> - <td>DATE_W3C</td> - <td>World Wide Web Consortium</td> - <td>2005-08-14T16:13:03+0000</td> - </tr> -</table> - -<h2>local_to_gmt()</h2> - -<p>Takes a Unix timestamp as input and returns it as GMT. Example:</p> - -<code>$now = time();<br /> -<br /> -$gmt = local_to_gmt($now);</code> - - -<h2>gmt_to_local()</h2> - -<p>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:</p> - -<code> -$timestamp = '1140153693';<br /> -$timezone = 'UM8';<br /> -$daylight_saving = TRUE;<br /> -<br /> -echo gmt_to_local($timestamp, $timezone, $daylight_saving);</code> - -<p><strong>Note:</strong> For a list of timezones see the reference at the bottom of this page.</p> - -<h2>mysql_to_unix()</h2> - -<p>Takes a MySQL Timestamp as input and returns it as Unix. Example:</p> - -<code>$mysql = '20061124092345';<br /> -<br /> -$unix = mysql_to_unix($mysql);</code> - - -<h2>unix_to_human()</h2> - -<p>Takes a Unix timestamp as input and returns it in a human readable format with this prototype:</p> - -<code>YYYY-MM-DD HH:MM:SS AM/PM</code> - -<p>This can be useful if you need to display a date in a form field for submission.</p> - -<p>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:</p> - -<code>$now = time();<br /> -<br /> -echo unix_to_human($now); // U.S. time, no seconds<br /> -<br /> -echo unix_to_human($now, TRUE, 'us'); // U.S. time with seconds<br /> -<br /> -echo unix_to_human($now, TRUE, 'eu'); // Euro time with seconds</code> - - -<h2>human_to_unix()</h2> - -<p>The opposite of the above function. Takes a "human" time as input and returns it as Unix. This function is -useful if you accept "human" formatted dates submitted via a form. Returns FALSE (boolean) if -the date string passed to it is not formatted as indicated above. Example:</p> - -<code>$now = time();<br /> -<br /> -$human = unix_to_human($now);<br /> -<br /> -$unix = human_to_unix($human);</code> - - - -<h2>nice_date()</h2> - -<p>This function can take a number poorly-formed date formats and convert them into something useful. It also accepts well-formed dates.</p> -<p>The function will return a Unix timestamp by default. You can, optionally, pass a format string (the same type as the PHP date function accepts) as the second parameter. Example:</p> - -<code>$bad_time = 199605<br /> -<br /> -// Should Produce: 1996-05-01<br /> -$better_time = nice_date($bad_time,'Y-m-d');<br /> -<br /> -$bad_time = 9-11-2001<br /> -// Should Produce: 2001-09-11<br /> -$better_time = nice_date($human,'Y-m-d');</code> - - - -<h2>timespan()</h2> - -<p>Formats a unix timestamp so that is appears similar to this:</p> - -<code>1 Year, 10 Months, 2 Weeks, 5 Days, 10 Hours, 16 Minutes</code> - -<p>The first parameter must contain a Unix timestamp. The second parameter must contain a -timestamp that is greater that the first timestamp. If the second parameter empty, the current time will be used. The most common purpose -for this function is to show how much time has elapsed from some point in time in the past to now. Example:</p> - -<code>$post_date = '1079621429';<br /> -$now = time();<br /> -<br /> -echo timespan($post_date, $now);</code> - -<p class="important"><strong>Note:</strong> The text generated by this function is found in the following language file: language/<your_lang>/date_lang.php</p> - - -<h2>days_in_month()</h2> - -<p>Returns the number of days in a given month/year. Takes leap years into account. Example:</p> -<code>echo days_in_month(06, 2005);</code> - -<p>If the second parameter is empty, the current year will be used.</p> -<h2>timezones()</h2> -<p> Takes a timezone reference (for a list of valid timezones, see the "Timezone Reference" below) and returns the number of hours offset from UTC.</p> -<p><code>echo timezones('UM5');</code></p> -<p>This function is useful when used with timezone_menu(). </p> -<h2>timezone_menu()</h2> -<p>Generates a pull-down menu of timezones, like this one:</p> - -<form action="#"> -<select name="timezones"> -<option value='UM12'>(UTC - 12:00) Enitwetok, Kwajalien</option> -<option value='UM11'>(UTC - 11:00) Nome, Midway Island, Samoa</option> -<option value='UM10'>(UTC - 10:00) Hawaii</option> -<option value='UM9'>(UTC - 9:00) Alaska</option> -<option value='UM8'>(UTC - 8:00) Pacific Time</option> -<option value='UM7'>(UTC - 7:00) Mountain Time</option> -<option value='UM6'>(UTC - 6:00) Central Time, Mexico City</option> -<option value='UM5'>(UTC - 5:00) Eastern Time, Bogota, Lima, Quito</option> -<option value='UM4'>(UTC - 4:00) Atlantic Time, Caracas, La Paz</option> -<option value='UM25'>(UTC - 3:30) Newfoundland</option> -<option value='UM3'>(UTC - 3:00) Brazil, Buenos Aires, Georgetown, Falkland Is.</option> -<option value='UM2'>(UTC - 2:00) Mid-Atlantic, Ascention Is., St Helena</option> -<option value='UM1'>(UTC - 1:00) Azores, Cape Verde Islands</option> -<option value='UTC' selected='selected'>(UTC) Casablanca, Dublin, Edinburgh, London, Lisbon, Monrovia</option> -<option value='UP1'>(UTC + 1:00) Berlin, Brussels, Copenhagen, Madrid, Paris, Rome</option> -<option value='UP2'>(UTC + 2:00) Kaliningrad, South Africa, Warsaw</option> -<option value='UP3'>(UTC + 3:00) Baghdad, Riyadh, Moscow, Nairobi</option> -<option value='UP25'>(UTC + 3:30) Tehran</option> -<option value='UP4'>(UTC + 4:00) Adu Dhabi, Baku, Muscat, Tbilisi</option> -<option value='UP35'>(UTC + 4:30) Kabul</option> -<option value='UP5'>(UTC + 5:00) Islamabad, Karachi, Tashkent</option> -<option value='UP45'>(UTC + 5:30) Bombay, Calcutta, Madras, New Delhi</option> -<option value='UP6'>(UTC + 6:00) Almaty, Colomba, Dhaka</option> -<option value='UP7'>(UTC + 7:00) Bangkok, Hanoi, Jakarta</option> -<option value='UP8'>(UTC + 8:00) Beijing, Hong Kong, Perth, Singapore, Taipei</option> -<option value='UP9'>(UTC + 9:00) Osaka, Sapporo, Seoul, Tokyo, Yakutsk</option> -<option value='UP85'>(UTC + 9:30) Adelaide, Darwin</option> -<option value='UP10'>(UTC + 10:00) Melbourne, Papua New Guinea, Sydney, Vladivostok</option> -<option value='UP11'>(UTC + 11:00) Magadan, New Caledonia, Solomon Islands</option> -<option value='UP12'>(UTC + 12:00) Auckland, Wellington, Fiji, Marshall Island</option> -</select> -</form> - -<p>This menu is useful if you run a membership site in which your users are allowed to set their local timezone value.</p> - -<p>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:</p> - -<code>echo timezone_menu('UM8');</code> - -<p>Please see the timezone reference below to see the values of this menu.</p> - -<p>The second parameter lets you set a CSS class name for the menu.</p> - -<p class="important"><strong>Note:</strong> The text contained in the menu is found in the following language file: language/<your_lang>/date_lang.php</p> - - - -<h2>Timezone Reference</h2> - -<p>The following table indicates each timezone and its location.</p> - -<table cellpadding="0" cellspacing="1" border="0" style="width:100%" class="tableborder"> -<tr> -<th>Time Zone</th> -<th>Location</th> -</tr><tr> - -<td class="td">UM12</td><td class="td">(UTC - 12:00) Enitwetok, Kwajalien</td> -</tr><tr> -<td class="td">UM11</td><td class="td">(UTC - 11:00) Nome, Midway Island, Samoa</td> -</tr><tr> -<td class="td">UM10</td><td class="td">(UTC - 10:00) Hawaii</td> -</tr><tr> -<td class="td">UM9</td><td class="td">(UTC - 9:00) Alaska</td> -</tr><tr> -<td class="td">UM8</td><td class="td">(UTC - 8:00) Pacific Time</td> -</tr><tr> -<td class="td">UM7</td><td class="td">(UTC - 7:00) Mountain Time</td> -</tr><tr> -<td class="td">UM6</td><td class="td">(UTC - 6:00) Central Time, Mexico City</td> -</tr><tr> -<td class="td">UM5</td><td class="td">(UTC - 5:00) Eastern Time, Bogota, Lima, Quito</td> -</tr><tr> -<td class="td">UM4</td><td class="td">(UTC - 4:00) Atlantic Time, Caracas, La Paz</td> -</tr><tr> -<td class="td">UM25</td><td class="td">(UTC - 3:30) Newfoundland</td> -</tr><tr> -<td class="td">UM3</td><td class="td">(UTC - 3:00) Brazil, Buenos Aires, Georgetown, Falkland Is.</td> -</tr><tr> -<td class="td">UM2</td><td class="td">(UTC - 2:00) Mid-Atlantic, Ascention Is., St Helena</td> -</tr><tr> -<td class="td">UM1</td><td class="td">(UTC - 1:00) Azores, Cape Verde Islands</td> -</tr><tr> -<td class="td">UTC</td><td class="td">(UTC) Casablanca, Dublin, Edinburgh, London, Lisbon, Monrovia</td> -</tr><tr> -<td class="td">UP1</td><td class="td">(UTC + 1:00) Berlin, Brussels, Copenhagen, Madrid, Paris, Rome</td> -</tr><tr> -<td class="td">UP2</td><td class="td">(UTC + 2:00) Kaliningrad, South Africa, Warsaw</td> -</tr><tr> -<td class="td">UP3</td><td class="td">(UTC + 3:00) Baghdad, Riyadh, Moscow, Nairobi</td> -</tr><tr> -<td class="td">UP25</td><td class="td">(UTC + 3:30) Tehran</td> -</tr><tr> -<td class="td">UP4</td><td class="td">(UTC + 4:00) Adu Dhabi, Baku, Muscat, Tbilisi</td> -</tr><tr> -<td class="td">UP35</td><td class="td">(UTC + 4:30) Kabul</td> -</tr><tr> -<td class="td">UP5</td><td class="td">(UTC + 5:00) Islamabad, Karachi, Tashkent</td> -</tr><tr> -<td class="td">UP45</td><td class="td">(UTC + 5:30) Bombay, Calcutta, Madras, New Delhi</td> -</tr><tr> -<td class="td">UP6</td><td class="td">(UTC + 6:00) Almaty, Colomba, Dhaka</td> -</tr><tr> -<td class="td">UP7</td><td class="td">(UTC + 7:00) Bangkok, Hanoi, Jakarta</td> -</tr><tr> -<td class="td">UP8</td><td class="td">(UTC + 8:00) Beijing, Hong Kong, Perth, Singapore, Taipei</td> -</tr><tr> -<td class="td">UP9</td><td class="td">(UTC + 9:00) Osaka, Sapporo, Seoul, Tokyo, Yakutsk</td> -</tr><tr> -<td class="td">UP85</td><td class="td">(UTC + 9:30) Adelaide, Darwin</td> -</tr><tr> -<td class="td">UP10</td><td class="td">(UTC + 10:00) Melbourne, Papua New Guinea, Sydney, Vladivostok</td> -</tr><tr> -<td class="td">UP11</td><td class="td">(UTC + 11:00) Magadan, New Caledonia, Solomon Islands</td> -</tr><tr> -<td class="td">UP12</td><td class="td">(UTC + 12:00) Auckland, Wellington, Fiji, Marshall Island</td> -</tr> -</table> - - -</div> -<!-- END CONTENT --> - - -<div id="footer"> -<p> -Previous Topic: <a href="cookie_helper.html">Cookie Helper</a> - · -<a href="#top">Top of Page</a> · -<a href="../index.html">User Guide Home</a> · -Next Topic: <a href="directory_helper.html">Directory Helper</a> -</p> -<p><a href="http://codeigniter.com">CodeIgniter</a> · Copyright © 2006 - 2011 · <a href="http://ellislab.com/">EllisLab, Inc.</a></p> -</div> - -</body> -</html>
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