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<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');/*** CodeIgniter** An open source application development framework for PHP 4.3.2 or newer** @package CodeIgniter* @author ExpressionEngine Dev Team* @copyright Copyright (c) 2008, EllisLab, Inc.* @license http://codeigniter.com/user_guide/license.html* @link http://codeigniter.com* @since Version 1.0* @filesource*/// ------------------------------------------------------------------------/*** CodeIgniter Date Helpers** @package CodeIgniter* @subpackage Helpers* @category Helpers* @author ExpressionEngine 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')){function now(){$CI =& get_instance();if (strtolower($CI->config->item('time_reference')) == 'gmt'){$now = time();$system_time = mktime(gmdate("H", $now), gmdate("i", $now), gmdate("s", $now), gmdate("m", $now), gmdate("d", $now), gmdate("Y", $now));if (strlen($system_time) < 10){$system_time = time();log_message('error', 'The Date class could not set a proper GMT timestamp so the local time() value was used.');}return $system_time;}else{return time();}}}// ------------------------------------------------------------------------/*** Convert MySQL Style Datecodes** This function is identical to PHPs date() function,* except that it allows date codes to be formatted using* the MySQL style, where each code letter is preceded* with a percent sign: %Y %m %d etc...** The benefit of doing dates this way is that you don't* have to worry about escaping your text letters that* match the date codes.** @access public* @param string* @param integer* @return integer*/if ( ! function_exists('mdate')){function mdate($datestr = '', $time = ''){if ($datestr == '')return '';if ($time == '')$time = now();$datestr = str_replace('%\\', '', preg_replace("/([a-z]+?){1}/i", "\\\\\\1", $datestr));return date($datestr, $time);}}// ------------------------------------------------------------------------/*** Standard Date** Returns a date formatted according to the submitted standard.** @access public* @param string the chosen format* @param integer Unix timestamp* @return string*/if ( ! function_exists('standard_date')){function standard_date($fmt = 'DATE_RFC822', $time = ''){$formats = array('DATE_ATOM' => '%Y-%m-%dT%H:%i:%s%Q','DATE_COOKIE' => '%l, %d-%M-%y %H:%i:%s UTC','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:%m:%i UTC','DATE_RFC1036' => '%D, %d %M %y %H:%i:%s %O','DATE_RFC1123' => '%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');if ( ! isset($formats[$fmt])){return FALSE;}return mdate($formats[$fmt], $time);}}// ------------------------------------------------------------------------/*** Timespan** Returns a span of seconds in this format:* 10 days 14 hours 36 minutes 47 seconds** @access public* @param integer a number of seconds* @param integer Unix timestamp* @return integer*/if ( ! function_exists('timespan')){function timespan($seconds = 1, $time = ''){$CI =& get_instance();$CI->lang->load('date');if ( ! is_numeric($seconds)){$seconds = 1;}if ( ! is_numeric($time)){$time = time();}if ($time <= $seconds){$seconds = 1;}else{$seconds = $time - $seconds;}$str = '';$years = floor($seconds / 31536000);if ($years > 0){$str .= $years.' '.$CI->lang->line((($years > 1) ? 'date_years' : 'date_year')).', ';}$seconds -= $years * 31536000;$months = floor($seconds / 2628000);if ($years > 0 OR $months > 0){if ($months > 0){$str .= $months.' '.$CI->lang->line((($months > 1) ? 'date_months' : 'date_month')).', ';}$seconds -= $months * 2628000;}$weeks = floor($seconds / 604800);if ($years > 0 OR $months > 0 OR $weeks > 0){if ($weeks > 0){$str .= $weeks.' '.$CI->lang->line((($weeks > 1) ? 'date_weeks' : 'date_week')).', ';}$seconds -= $weeks * 604800;}$days = floor($seconds / 86400);if ($months > 0 OR $weeks > 0 OR $days > 0){if ($days > 0){$str .= $days.' '.$CI->lang->line((($days > 1) ? 'date_days' : 'date_day')).', ';}$seconds -= $days * 86400;}$hours = floor($seconds / 3600);if ($days > 0 OR $hours > 0){if ($hours > 0){$str .= $hours.' '.$CI->lang->line((($hours > 1) ? 'date_hours' : 'date_hour')).', ';}$seconds -= $hours * 3600;}$minutes = floor($seconds / 60);if ($days > 0 OR $hours > 0 OR $minutes > 0){if ($minutes > 0){$str .= $minutes.' '.$CI->lang->line((($minutes > 1) ? 'date_minutes' : 'date_minute')).', ';}$seconds -= $minutes * 60;}if ($str == ''){$str .= $seconds.' '.$CI->lang->line((($seconds > 1) ? 'date_seconds' : 'date_second')).', ';}return substr(trim($str), 0, -1);}}// ------------------------------------------------------------------------/*** 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')){function days_in_month($month = 0, $year = ''){if ($month < 1 OR $month > 12){return 0;}if ( ! is_numeric($year) OR strlen($year) != 4){$year = date('Y');}if ($month == 2){if ($year % 400 == 0 OR ($year % 4 == 0 AND $year % 100 != 0)){return 29;}}$days_in_month = array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);return $days_in_month[$month - 1];}}// ------------------------------------------------------------------------/*** Converts a local Unix timestamp to GMT** @access public* @param integer Unix timestamp* @return integer*/if ( ! function_exists('local_to_gmt')){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", $time));}}// ------------------------------------------------------------------------/*** Converts GMT time to a localized value** Takes a Unix timestamp (in GMT) as input, and returns* at the local value based on the timezone and DST setting* submitted** @access public* @param integer Unix timestamp* @param string timezone* @param bool whether DST is active* @return integer*/if ( ! function_exists('gmt_to_local')){function gmt_to_local($time = '', $timezone = 'UTC', $dst = FALSE){if ($time == ''){return now();}$time += timezones($timezone) * 3600;if ($dst == TRUE){$time += 3600;}return $time;}}// ------------------------------------------------------------------------/*** Converts a MySQL Timestamp to Unix** @access public* @param integer Unix timestamp* @return integer*/if ( ! function_exists('mysql_to_unix')){function mysql_to_unix($time = ''){// We'll remove certain characters for backward compatibility// since the formatting changed with MySQL 4.1// YYYY-MM-DD HH:MM:SS$time = str_replace('-', '', $time);$time = str_replace(':', '', $time);$time = str_replace(' ', '', $time);// YYYYMMDDHHMMSSreturn mktime(substr($time, 8, 2),substr($time, 10, 2),substr($time, 12, 2),substr($time, 4, 2),substr($time, 6, 2),substr($time, 0, 4));}}// ------------------------------------------------------------------------/*** Unix to "Human"** Formats Unix timestamp to the following prototype: 2006-08-21 11:35 PM** @access public* @param integer Unix timestamp* @param bool whether to show seconds* @param string format: us or euro* @return string*/if ( ! function_exists('unix_to_human')){function unix_to_human($time = '', $seconds = FALSE, $fmt = 'us'){$r = date('Y', $time).'-'.date('m', $time).'-'.date('d', $time).' ';if ($fmt == 'us'){$r .= date('h', $time).':'.date('i', $time);}else{$r .= date('H', $time).':'.date('i', $time);}if ($seconds){$r .= ':'.date('s', $time);}if ($fmt == 'us'){$r .= ' '.date('A', $time);}return $r;}}// ------------------------------------------------------------------------/*** Convert "human" date to GMT** Reverses the above process** @access public* @param string format: us or euro* @return integer*/if ( ! function_exists('human_to_unix')){function human_to_unix($datestr = ''){if ($datestr == ''){return FALSE;}$datestr = trim($datestr);$datestr = preg_replace("/\040+/", "\040", $datestr);if ( ! preg_match('/^[0-9]{2,4}\-[0-9]{1,2}\-[0-9]{1,2}\s[0-9]{1,2}:[0-9]{1,2}(?::[0-9]{1,2})?(?:\s[AP]M)?$/i', $datestr)){return FALSE;}$split = preg_split("/\040/", $datestr);$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'] : $ex['2'];$ex = explode(":", $split['1']);$hour = (strlen($ex['0']) == 1) ? '0'.$ex['0'] : $ex['0'];$min = (strlen($ex['1']) == 1) ? '0'.$ex['1'] : $ex['1'];if (isset($ex['2']) AND ereg("[0-9]{1,2}", $ex['2'])){$sec = (strlen($ex['2']) == 1) ? '0'.$ex['2'] : $ex['2'];}else{// Unless specified, seconds get set to zero.$sec = '00';}if (isset($split['2'])){$ampm = strtolower($split['2']);if (substr($ampm, 0, 1) == 'p' AND $hour < 12)$hour = $hour + 12;if (substr($ampm, 0, 1) == 'a' AND $hour == 12)$hour = '00';if (strlen($hour) == 1)$hour = '0'.$hour;}return mktime($hour, $min, $sec, $month, $day, $year);}}// ------------------------------------------------------------------------/*** Timezone Menu** Generates a drop-down menu of timezones.** @access public* @param string timezone* @param string classname* @param string menu name* @return string*/if ( ! function_exists('timezone_menu')){function timezone_menu($default = 'UTC', $class = "", $name = 'timezones'){$CI =& get_instance();$CI->lang->load('date');if ($default == 'GMT')$default = 'UTC';$menu = '<select name="'.$name.'"';if ($class != ''){$menu .= ' class="'.$class.'"';}$menu .= ">\n";foreach (timezones() as $key => $val){$selected = ($default == $key) ? " selected='selected'" : '';$menu .= "<option value='{$key}'{$selected}>".$CI->lang->line($key)."</option>\n";}$menu .= "</select>";return $menu;}}// ------------------------------------------------------------------------/*** Timezones** Returns an array of timezones. This is a helper function* for various other ones in this library** @access public* @param string timezone* @return string*/if ( ! function_exists('timezones')){function timezones($tz = ''){// Note: Don't change the order of these even though// some items appear to be in the wrong order$zones = array('UM12' => -12,'UM11' => -11,'UM10' => -10,'UM95' => -9.5,'UM9' => -9,'UM8' => -8,'UM7' => -7,'UM6' => -6,'UM5' => -5,'UM45' => -4.5,'UM4' => -4,'UM35' => -3.5,'UM3' => -3,'UM2' => -2,'UM1' => -1,'UTC' => 0,'UP1' => +1,'UP2' => +2,'UP3' => +3,'UP35' => +3.5,'UP4' => +4,'UP45' => +4.5,'UP5' => +5,'UP55' => +5.5,'UP575' => +5.75,'UP6' => +6,'UP65' => +6.5,'UP7' => +7,'UP8' => +8,'UP875' => +8.75,'UP9' => +9,'UP95' => +9.5,'UP10' => +10,'UP105' => +10.5,'UP11' => +11,'UP115' => +11.5,'UP12' => +12,'UP1275' => +12.75,'UP13' => +13,'UP14' => +14);if ($tz == ''){return $zones;}if ($tz == 'GMT')$tz = 'UTC';return ( ! isset($zones[$tz])) ? 0 : $zones[$tz];}}/* End of file date_helper.php *//* Location: ./system/helpers/date_helper.php */