diff options
Diffstat (limited to 'system/helpers/date_helper.php')
| -rw-r--r-- | system/helpers/date_helper.php | 573 |
1 files changed, 325 insertions, 248 deletions
diff --git a/system/helpers/date_helper.php b/system/helpers/date_helper.php index 0aeb7fafb..5f0427f7d 100644 --- a/system/helpers/date_helper.php +++ b/system/helpers/date_helper.php @@ -1,42 +1,51 @@ -<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); +<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); /** * CodeIgniter * - * An open source application development framework for PHP 5.1.6 or newer + * An open source application development framework for PHP 5.2.4 or newer + * + * NOTICE OF LICENSE + * + * Licensed under the Open Software License version 3.0 + * + * This source file is subject to the Open Software License (OSL 3.0) that is + * bundled with this package in the files license.txt / license.rst. It is + * also available through the world wide web at this URL: + * http://opensource.org/licenses/OSL-3.0 + * If you did not receive a copy of the license and are unable to obtain it + * through the world wide web, please send an email to + * licensing@ellislab.com so we can send you a copy immediately. * * @package CodeIgniter - * @author ExpressionEngine Dev Team - * @copyright Copyright (c) 2008 - 2011, EllisLab, Inc. - * @license http://codeigniter.com/user_guide/license.html + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/) + * @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0) * @link http://codeigniter.com * @since Version 1.0 * @filesource */ -// ------------------------------------------------------------------------ - /** * CodeIgniter Date Helpers * * @package CodeIgniter * @subpackage Helpers * @category Helpers - * @author ExpressionEngine Dev Team + * @author EllisLab Dev Team * @link http://codeigniter.com/user_guide/helpers/date_helper.html */ // ------------------------------------------------------------------------ -/** - * Get "now" time - * - * Returns time() or its GMT equivalent based on the config file preference - * - * @access public - * @return integer - */ if ( ! function_exists('now')) { + /** + * Get "now" time + * + * Returns time() or its GMT equivalent based on the config file preference + * + * @return int + */ function now() { $CI =& get_instance(); @@ -54,73 +63,76 @@ if ( ! function_exists('now')) return $system_time; } - else - { - return time(); - } + + return time(); } } // ------------------------------------------------------------------------ -/** - * Convert MySQL Style Datecodes - * - * This function is identical to PHPs date() function, - * except that it allows date codes to be formatted using - * the MySQL style, where each code letter is preceded - * with a percent sign: %Y %m %d etc... - * - * The benefit of doing dates this way is that you don't - * have to worry about escaping your text letters that - * match the date codes. - * - * @access public - * @param string - * @param integer - * @return integer - */ if ( ! function_exists('mdate')) { + /** + * Convert MySQL Style Datecodes + * + * This function is identical to PHPs date() function, + * except that it allows date codes to be formatted using + * the MySQL style, where each code letter is preceded + * with a percent sign: %Y %m %d etc... + * + * The benefit of doing dates this way is that you don't + * have to worry about escaping your text letters that + * match the date codes. + * + * @param string + * @param int + * @return int + */ function mdate($datestr = '', $time = '') { if ($datestr == '') + { return ''; + } - if ($time == '') - $time = now(); + $time = ($time == '') ? now() : $time; + + $datestr = str_replace( + '%\\', + '', + preg_replace('/([a-z]+?){1}/i', '\\\\\\1', $datestr) + ); - $datestr = str_replace('%\\', '', preg_replace("/([a-z]+?){1}/i", "\\\\\\1", $datestr)); return date($datestr, $time); } } // ------------------------------------------------------------------------ -/** - * Standard Date - * - * Returns a date formatted according to the submitted standard. - * - * @access public - * @param string the chosen format - * @param integer Unix timestamp - * @return string - */ if ( ! function_exists('standard_date')) { + /** + * Standard Date + * + * Returns a date formatted according to the submitted standard. + * + * @param string the chosen format + * @param int Unix timestamp + * @return string + */ function standard_date($fmt = 'DATE_RFC822', $time = '') { $formats = array( - 'DATE_ATOM' => '%Y-%m-%dT%H:%i:%s%Q', + 'DATE_ATOM' => '%Y-%m-%dT%H:%i:%s%O', 'DATE_COOKIE' => '%l, %d-%M-%y %H:%i:%s UTC', - 'DATE_ISO8601' => '%Y-%m-%dT%H:%i:%s%Q', + 'DATE_ISO8601' => '%Y-%m-%dT%H:%i:%s%O', 'DATE_RFC822' => '%D, %d %M %y %H:%i:%s %O', 'DATE_RFC850' => '%l, %d-%M-%y %H:%i:%s UTC', 'DATE_RFC1036' => '%D, %d %M %y %H:%i:%s %O', 'DATE_RFC1123' => '%D, %d %M %Y %H:%i:%s %O', + 'DATE_RFC2822' => '%D, %d %M %Y %H:%i:%s %O', 'DATE_RSS' => '%D, %d %M %Y %H:%i:%s %O', - 'DATE_W3C' => '%Y-%m-%dT%H:%i:%s%Q' + 'DATE_W3C' => '%Y-%m-%dT%H:%i:%s%O' ); if ( ! isset($formats[$fmt])) @@ -134,20 +146,20 @@ if ( ! function_exists('standard_date')) // ------------------------------------------------------------------------ -/** - * Timespan - * - * Returns a span of seconds in this format: - * 10 days 14 hours 36 minutes 47 seconds - * - * @access public - * @param integer a number of seconds - * @param integer Unix timestamp - * @return integer - */ if ( ! function_exists('timespan')) { - function timespan($seconds = 1, $time = '') + /** + * Timespan + * + * Returns a span of seconds in this format: + * 10 days 14 hours 36 minutes 47 seconds + * + * @param int a number of seconds + * @param int Unix timestamp + * @param int a number of display units + * @return string + */ + function timespan($seconds = 1, $time = '', $units = 7) { $CI =& get_instance(); $CI->lang->load('date'); @@ -162,43 +174,41 @@ if ( ! function_exists('timespan')) $time = time(); } - if ($time <= $seconds) + if ( ! is_numeric($units)) { - $seconds = 1; - } - else - { - $seconds = $time - $seconds; + $units = 7; } - $str = ''; - $years = floor($seconds / 31536000); + $seconds = ($time <= $seconds) ? 1 : $time - $seconds; + + $str = array(); + $years = floor($seconds / 31557600); if ($years > 0) { - $str .= $years.' '.$CI->lang->line((($years > 1) ? 'date_years' : 'date_year')).', '; + $str[] = $years.' '.$CI->lang->line((($years > 1) ? 'date_years' : 'date_year')); } - $seconds -= $years * 31536000; - $months = floor($seconds / 2628000); + $seconds -= $years * 31557600; + $months = floor($seconds / 2629743); - if ($years > 0 OR $months > 0) + if (count($str) < $units && ($years > 0 OR $months > 0)) { if ($months > 0) { - $str .= $months.' '.$CI->lang->line((($months > 1) ? 'date_months' : 'date_month')).', '; + $str[] = $months.' '.$CI->lang->line((($months > 1) ? 'date_months' : 'date_month')); } - $seconds -= $months * 2628000; + $seconds -= $months * 2629743; } $weeks = floor($seconds / 604800); - if ($years > 0 OR $months > 0 OR $weeks > 0) + if (count($str) < $units && ($years > 0 OR $months > 0 OR $weeks > 0)) { if ($weeks > 0) { - $str .= $weeks.' '.$CI->lang->line((($weeks > 1) ? 'date_weeks' : 'date_week')).', '; + $str[] = $weeks.' '.$CI->lang->line((($weeks > 1) ? 'date_weeks' : 'date_week')); } $seconds -= $weeks * 604800; @@ -206,11 +216,11 @@ if ( ! function_exists('timespan')) $days = floor($seconds / 86400); - if ($months > 0 OR $weeks > 0 OR $days > 0) + if (count($str) < $units && ($months > 0 OR $weeks > 0 OR $days > 0)) { if ($days > 0) { - $str .= $days.' '.$CI->lang->line((($days > 1) ? 'date_days' : 'date_day')).', '; + $str[] = $days.' '.$CI->lang->line((($days > 1) ? 'date_days' : 'date_day')); } $seconds -= $days * 86400; @@ -218,11 +228,11 @@ if ( ! function_exists('timespan')) $hours = floor($seconds / 3600); - if ($days > 0 OR $hours > 0) + if (count($str) < $units && ($days > 0 OR $hours > 0)) { if ($hours > 0) { - $str .= $hours.' '.$CI->lang->line((($hours > 1) ? 'date_hours' : 'date_hour')).', '; + $str[] = $hours.' '.$CI->lang->line((($hours > 1) ? 'date_hours' : 'date_hour')); } $seconds -= $hours * 3600; @@ -230,40 +240,39 @@ if ( ! function_exists('timespan')) $minutes = floor($seconds / 60); - if ($days > 0 OR $hours > 0 OR $minutes > 0) + if (count($str) < $units && ($days > 0 OR $hours > 0 OR $minutes > 0)) { if ($minutes > 0) { - $str .= $minutes.' '.$CI->lang->line((($minutes > 1) ? 'date_minutes' : 'date_minute')).', '; + $str[] = $minutes.' '.$CI->lang->line((($minutes > 1) ? 'date_minutes' : 'date_minute')); } $seconds -= $minutes * 60; } - if ($str == '') + if (count($str) === 0) { - $str .= $seconds.' '.$CI->lang->line((($seconds > 1) ? 'date_seconds' : 'date_second')).', '; + $str[] = $seconds.' '.$CI->lang->line((($seconds > 1) ? 'date_seconds' : 'date_second')); } - return substr(trim($str), 0, -1); + return implode(', ', $str); } } // ------------------------------------------------------------------------ -/** - * Number of days in a month - * - * Takes a month/year as input and returns the number of days - * for the given month/year. Takes leap years into consideration. - * - * @access public - * @param integer a numeric month - * @param integer a numeric year - * @return integer - */ if ( ! function_exists('days_in_month')) { + /** + * Number of days in a month + * + * Takes a month/year as input and returns the number of days + * for the given month/year. Takes leap years into consideration. + * + * @param int a numeric month + * @param int a numeric year + * @return int + */ function days_in_month($month = 0, $year = '') { if ($month < 1 OR $month > 12) @@ -278,7 +287,7 @@ if ( ! function_exists('days_in_month')) if ($month == 2) { - if ($year % 400 == 0 OR ($year % 4 == 0 AND $year % 100 != 0)) + if ($year % 400 == 0 OR ($year % 4 == 0 && $year % 100 != 0)) { return 29; } @@ -291,41 +300,48 @@ if ( ! function_exists('days_in_month')) // ------------------------------------------------------------------------ -/** - * Converts a local Unix timestamp to GMT - * - * @access public - * @param integer Unix timestamp - * @return integer - */ if ( ! function_exists('local_to_gmt')) { + /** + * Converts a local Unix timestamp to GMT + * + * @param int Unix timestamp + * @return int + */ function local_to_gmt($time = '') { if ($time == '') + { $time = time(); + } - return mktime( gmdate("H", $time), gmdate("i", $time), gmdate("s", $time), gmdate("m", $time), gmdate("d", $time), gmdate("Y", $time)); + return mktime( + gmdate('H', $time), + gmdate('i', $time), + gmdate('s', $time), + gmdate('m', $time), + gmdate('d', $time), + gmdate('Y', $time) + ); } } // ------------------------------------------------------------------------ -/** - * Converts GMT time to a localized value - * - * Takes a Unix timestamp (in GMT) as input, and returns - * at the local value based on the timezone and DST setting - * submitted - * - * @access public - * @param integer Unix timestamp - * @param string timezone - * @param bool whether DST is active - * @return integer - */ if ( ! function_exists('gmt_to_local')) { + /** + * Converts GMT time to a localized value + * + * Takes a Unix timestamp (in GMT) as input, and returns + * at the local value based on the timezone and DST setting + * submitted + * + * @param int Unix timestamp + * @param string timezone + * @param bool whether DST is active + * @return int + */ function gmt_to_local($time = '', $timezone = 'UTC', $dst = FALSE) { if ($time == '') @@ -346,15 +362,14 @@ if ( ! function_exists('gmt_to_local')) // ------------------------------------------------------------------------ -/** - * Converts a MySQL Timestamp to Unix - * - * @access public - * @param integer Unix timestamp - * @return integer - */ if ( ! function_exists('mysql_to_unix')) { + /** + * Converts a MySQL Timestamp to Unix + * + * @param int Unix timestamp + * @return int + */ function mysql_to_unix($time = '') { // We'll remove certain characters for backward compatibility @@ -366,32 +381,31 @@ if ( ! function_exists('mysql_to_unix')) $time = str_replace(' ', '', $time); // YYYYMMDDHHMMSS - return mktime( - substr($time, 8, 2), - substr($time, 10, 2), - substr($time, 12, 2), - substr($time, 4, 2), - substr($time, 6, 2), - substr($time, 0, 4) - ); + return mktime( + substr($time, 8, 2), + substr($time, 10, 2), + substr($time, 12, 2), + substr($time, 4, 2), + substr($time, 6, 2), + substr($time, 0, 4) + ); } } // ------------------------------------------------------------------------ -/** - * Unix to "Human" - * - * Formats Unix timestamp to the following prototype: 2006-08-21 11:35 PM - * - * @access public - * @param integer Unix timestamp - * @param bool whether to show seconds - * @param string format: us or euro - * @return string - */ if ( ! function_exists('unix_to_human')) { + /** + * Unix to "Human" + * + * Formats Unix timestamp to the following prototype: 2006-08-21 11:35 PM + * + * @param int Unix timestamp + * @param bool whether to show seconds + * @param string format: us or euro + * @return string + */ function unix_to_human($time = '', $seconds = FALSE, $fmt = 'us') { $r = date('Y', $time).'-'.date('m', $time).'-'.date('d', $time).' '; @@ -421,17 +435,16 @@ if ( ! function_exists('unix_to_human')) // ------------------------------------------------------------------------ -/** - * Convert "human" date to GMT - * - * Reverses the above process - * - * @access public - * @param string format: us or euro - * @return integer - */ if ( ! function_exists('human_to_unix')) { + /** + * Convert "human" date to GMT + * + * Reverses the above process + * + * @param string format: us or euro + * @return int + */ function human_to_unix($datestr = '') { if ($datestr == '') @@ -439,8 +452,7 @@ if ( ! function_exists('human_to_unix')) return FALSE; } - $datestr = trim($datestr); - $datestr = preg_replace("/\040+/", ' ', $datestr); + $datestr = preg_replace('/\040+/', ' ', trim($datestr)); if ( ! preg_match('/^[0-9]{2,4}\-[0-9]{1,2}\-[0-9]{1,2}\s[0-9]{1,2}:[0-9]{1,2}(?::[0-9]{1,2})?(?:\s[AP]M)?$/i', $datestr)) { @@ -449,20 +461,20 @@ if ( ! function_exists('human_to_unix')) $split = explode(' ', $datestr); - $ex = explode("-", $split['0']); + $ex = explode('-', $split['0']); - $year = (strlen($ex['0']) == 2) ? '20'.$ex['0'] : $ex['0']; - $month = (strlen($ex['1']) == 1) ? '0'.$ex['1'] : $ex['1']; - $day = (strlen($ex['2']) == 1) ? '0'.$ex['2'] : $ex['2']; + $year = (strlen($ex[0]) === 2) ? '20'.$ex[0] : $ex[0]; + $month = (strlen($ex[1]) === 1) ? '0'.$ex[1] : $ex[1]; + $day = (strlen($ex[2]) === 1) ? '0'.$ex[2] : $ex[2]; - $ex = explode(":", $split['1']); + $ex = explode(':', $split['1']); - $hour = (strlen($ex['0']) == 1) ? '0'.$ex['0'] : $ex['0']; - $min = (strlen($ex['1']) == 1) ? '0'.$ex['1'] : $ex['1']; + $hour = (strlen($ex[0]) === 1) ? '0'.$ex[0] : $ex[0]; + $min = (strlen($ex[1]) === 1) ? '0'.$ex[1] : $ex[1]; - if (isset($ex['2']) && preg_match('/[0-9]{1,2}/', $ex['2'])) + if (isset($ex['2']) && preg_match('/[0-9]{1,2}/', $ex[2])) { - $sec = (strlen($ex['2']) == 1) ? '0'.$ex['2'] : $ex['2']; + $sec = (strlen($ex[2]) === 1) ? '0'.$ex[2] : $ex[2]; } else { @@ -472,16 +484,22 @@ if ( ! function_exists('human_to_unix')) if (isset($split['2'])) { - $ampm = strtolower($split['2']); + $ampm = strtolower($split[2]); - if (substr($ampm, 0, 1) == 'p' AND $hour < 12) - $hour = $hour + 12; + if (substr($ampm, 0, 1) === 'p' && $hour < 12) + { + $hour += 12; + } - if (substr($ampm, 0, 1) == 'a' AND $hour == 12) + if (substr($ampm, 0, 1) === 'a' && $hour == 12) + { $hour = '00'; + } - if (strlen($hour) == 1) + if (strlen($hour) === 1) + { $hour = '0'.$hour; + } } return mktime($hour, $min, $sec, $month, $day, $year); @@ -490,26 +508,90 @@ if ( ! function_exists('human_to_unix')) // ------------------------------------------------------------------------ -/** - * Timezone Menu - * - * Generates a drop-down menu of timezones. - * - * @access public - * @param string timezone - * @param string classname - * @param string menu name - * @return string - */ +if ( ! function_exists('nice_date')) +{ + /** + * Turns many "reasonably-date-like" strings into something + * that is actually useful. This only works for dates after unix epoch. + * + * @param string The terribly formatted date-like string + * @param string Date format to return (same as php date function) + * @return string + */ + function nice_date($bad_date = '', $format = FALSE) + { + if (empty($bad_date)) + { + return 'Unknown'; + } + + // Date like: YYYYMM + if (preg_match('/^\d{6}$/', $bad_date)) + { + if (in_array(substr($bad_date, 0, 2), array('19', '20'))) + { + $year = substr($bad_date, 0, 4); + $month = substr($bad_date, 4, 2); + } + else + { + $month = substr($bad_date, 0, 2); + $year = substr($bad_date, 2, 4); + } + + return date($format, strtotime($year.'-'.$month.'-01')); + } + + // Date Like: YYYYMMDD + if (preg_match('/^\d{8}$/', $bad_date)) + { + $month = substr($bad_date, 0, 2); + $day = substr($bad_date, 2, 2); + $year = substr($bad_date, 4, 4); + + return date($format, strtotime($month.'/01/'.$year)); + } + + // Date Like: MM-DD-YYYY __or__ M-D-YYYY (or anything in between) + if (preg_match('/^\d{1,2}-\d{1,2}-\d{4}$/', $bad_date)) + { + list($m, $d, $y) = explode('-', $bad_date); + return date($format, strtotime($y.'-'.$m.'-'.$d)); + } + + // Any other kind of string, when converted into UNIX time, + // produces "0 seconds after epoc..." is probably bad... + // return "Invalid Date". + if (date('U', strtotime($bad_date)) == '0') + { + return 'Invalid Date'; + } + + // It's probably a valid-ish date format already + return date($format, strtotime($bad_date)); + } +} + +// ------------------------------------------------------------------------ + if ( ! function_exists('timezone_menu')) { - function timezone_menu($default = 'UTC', $class = "", $name = 'timezones') + /** + * Timezone Menu + * + * Generates a drop-down menu of timezones. + * + * @param string timezone + * @param string classname + * @param string menu name + * @return string + */ + function timezone_menu($default = 'UTC', $class = '', $name = 'timezones') { $CI =& get_instance(); $CI->lang->load('date'); - if ($default == 'GMT') - $default = 'UTC'; + $default = ($default == 'GMT') ? 'UTC' : $default; $menu = '<select name="'.$name.'"'; @@ -522,90 +604,85 @@ if ( ! function_exists('timezone_menu')) foreach (timezones() as $key => $val) { - $selected = ($default == $key) ? " selected='selected'" : ''; - $menu .= "<option value='{$key}'{$selected}>".$CI->lang->line($key)."</option>\n"; + $selected = ($default == $key) ? ' selected="selected"' : ''; + $menu .= '<option value="'.$key.'"'.$selected.'>'.$CI->lang->line($key)."</option>\n"; } - $menu .= "</select>"; - - return $menu; + return $menu.'</select>'; } } // ------------------------------------------------------------------------ -/** - * Timezones - * - * Returns an array of timezones. This is a helper function - * for various other ones in this library - * - * @access public - * @param string timezone - * @return string - */ if ( ! function_exists('timezones')) { + /** + * Timezones + * + * Returns an array of timezones. This is a helper function + * for various other ones in this library + * + * @param string timezone + * @return string + */ function timezones($tz = '') { // Note: Don't change the order of these even though // some items appear to be in the wrong order $zones = array( - 'UM12' => -12, - 'UM11' => -11, - 'UM10' => -10, - 'UM95' => -9.5, - 'UM9' => -9, - 'UM8' => -8, - 'UM7' => -7, - 'UM6' => -6, - 'UM5' => -5, - 'UM45' => -4.5, - 'UM4' => -4, - 'UM35' => -3.5, - 'UM3' => -3, - 'UM2' => -2, - 'UM1' => -1, - 'UTC' => 0, - 'UP1' => +1, - 'UP2' => +2, - 'UP3' => +3, - 'UP35' => +3.5, - 'UP4' => +4, - 'UP45' => +4.5, - 'UP5' => +5, - 'UP55' => +5.5, - 'UP575' => +5.75, - 'UP6' => +6, - 'UP65' => +6.5, - 'UP7' => +7, - 'UP8' => +8, - 'UP875' => +8.75, - 'UP9' => +9, - 'UP95' => +9.5, - 'UP10' => +10, - 'UP105' => +10.5, - 'UP11' => +11, - 'UP115' => +11.5, - 'UP12' => +12, - 'UP1275' => +12.75, - 'UP13' => +13, - 'UP14' => +14 - ); + 'UM12' => -12, + 'UM11' => -11, + 'UM10' => -10, + 'UM95' => -9.5, + 'UM9' => -9, + 'UM8' => -8, + 'UM7' => -7, + 'UM6' => -6, + 'UM5' => -5, + 'UM45' => -4.5, + 'UM4' => -4, + 'UM35' => -3.5, + 'UM3' => -3, + 'UM2' => -2, + 'UM1' => -1, + 'UTC' => 0, + 'UP1' => +1, + 'UP2' => +2, + 'UP3' => +3, + 'UP35' => +3.5, + 'UP4' => +4, + 'UP45' => +4.5, + 'UP5' => +5, + 'UP55' => +5.5, + 'UP575' => +5.75, + 'UP6' => +6, + 'UP65' => +6.5, + 'UP7' => +7, + 'UP8' => +8, + 'UP875' => +8.75, + 'UP9' => +9, + 'UP95' => +9.5, + 'UP10' => +10, + 'UP105' => +10.5, + 'UP11' => +11, + 'UP115' => +11.5, + 'UP12' => +12, + 'UP1275' => +12.75, + 'UP13' => +13, + 'UP14' => +14 + ); if ($tz == '') { return $zones; } - if ($tz == 'GMT') - $tz = 'UTC'; + $tz = ($tz == 'GMT') ? 'UTC' : $tz; - return ( ! isset($zones[$tz])) ? 0 : $zones[$tz]; + return isset($zones[$tz]) ? $zones[$tz] : 0; } } - /* End of file date_helper.php */ /* Location: ./system/helpers/date_helper.php */
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