[289] | 1 | <?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); |
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| 2 | /** |
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| 3 | * CodeIgniter |
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| 4 | * |
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| 5 | * An open source application development framework for PHP 5.1.6 or newer |
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| 6 | * |
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| 7 | * @package CodeIgniter |
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| 8 | * @author ExpressionEngine Dev Team |
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| 9 | * @copyright Copyright (c) 2008 - 2011, EllisLab, Inc. |
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| 10 | * @license http://codeigniter.com/user_guide/license.html |
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| 11 | * @link http://codeigniter.com |
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| 12 | * @since Version 1.0 |
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| 13 | * @filesource |
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| 14 | */ |
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| 15 | |
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| 16 | // ------------------------------------------------------------------------ |
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| 17 | |
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| 18 | /** |
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| 19 | * CodeIgniter Date Helpers |
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| 20 | * |
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| 21 | * @package CodeIgniter |
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| 22 | * @subpackage Helpers |
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| 23 | * @category Helpers |
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| 24 | * @author ExpressionEngine Dev Team |
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| 25 | * @link http://codeigniter.com/user_guide/helpers/date_helper.html |
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| 26 | */ |
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| 27 | |
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| 28 | // ------------------------------------------------------------------------ |
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| 29 | |
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| 30 | /** |
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| 31 | * Get "now" time |
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| 32 | * |
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| 33 | * Returns time() or its GMT equivalent based on the config file preference |
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| 34 | * |
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| 35 | * @access public |
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| 36 | * @return integer |
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| 37 | */ |
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| 38 | if ( ! function_exists('now')) |
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| 39 | { |
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| 40 | function now() |
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| 41 | { |
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| 42 | $CI =& get_instance(); |
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| 43 | |
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| 44 | if (strtolower($CI->config->item('time_reference')) == 'gmt') |
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| 45 | { |
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| 46 | $now = time(); |
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| 47 | $system_time = mktime(gmdate("H", $now), gmdate("i", $now), gmdate("s", $now), gmdate("m", $now), gmdate("d", $now), gmdate("Y", $now)); |
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| 48 | |
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| 49 | if (strlen($system_time) < 10) |
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| 50 | { |
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| 51 | $system_time = time(); |
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| 52 | log_message('error', 'The Date class could not set a proper GMT timestamp so the local time() value was used.'); |
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| 53 | } |
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| 54 | |
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| 55 | return $system_time; |
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| 56 | } |
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| 57 | else |
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| 58 | { |
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| 59 | return time(); |
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| 60 | } |
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| 61 | } |
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| 62 | } |
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| 63 | |
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| 64 | // ------------------------------------------------------------------------ |
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| 65 | |
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| 66 | /** |
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| 67 | * Convert MySQL Style Datecodes |
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| 68 | * |
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| 69 | * This function is identical to PHPs date() function, |
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| 70 | * except that it allows date codes to be formatted using |
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| 71 | * the MySQL style, where each code letter is preceded |
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| 72 | * with a percent sign: %Y %m %d etc... |
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| 73 | * |
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| 74 | * The benefit of doing dates this way is that you don't |
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| 75 | * have to worry about escaping your text letters that |
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| 76 | * match the date codes. |
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| 77 | * |
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| 78 | * @access public |
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| 79 | * @param string |
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| 80 | * @param integer |
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| 81 | * @return integer |
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| 82 | */ |
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| 83 | if ( ! function_exists('mdate')) |
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| 84 | { |
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| 85 | function mdate($datestr = '', $time = '') |
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| 86 | { |
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| 87 | if ($datestr == '') |
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| 88 | return ''; |
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| 89 | |
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| 90 | if ($time == '') |
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| 91 | $time = now(); |
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| 92 | |
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| 93 | $datestr = str_replace('%\\', '', preg_replace("/([a-z]+?){1}/i", "\\\\\\1", $datestr)); |
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| 94 | return date($datestr, $time); |
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| 95 | } |
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| 96 | } |
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| 97 | |
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| 98 | // ------------------------------------------------------------------------ |
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| 99 | |
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| 100 | /** |
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| 101 | * Standard Date |
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| 102 | * |
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| 103 | * Returns a date formatted according to the submitted standard. |
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| 104 | * |
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| 105 | * @access public |
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| 106 | * @param string the chosen format |
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| 107 | * @param integer Unix timestamp |
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| 108 | * @return string |
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| 109 | */ |
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| 110 | if ( ! function_exists('standard_date')) |
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| 111 | { |
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| 112 | function standard_date($fmt = 'DATE_RFC822', $time = '') |
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| 113 | { |
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| 114 | $formats = array( |
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| 115 | 'DATE_ATOM' => '%Y-%m-%dT%H:%i:%s%Q', |
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| 116 | 'DATE_COOKIE' => '%l, %d-%M-%y %H:%i:%s UTC', |
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| 117 | 'DATE_ISO8601' => '%Y-%m-%dT%H:%i:%s%Q', |
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| 118 | 'DATE_RFC822' => '%D, %d %M %y %H:%i:%s %O', |
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| 119 | 'DATE_RFC850' => '%l, %d-%M-%y %H:%i:%s UTC', |
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| 120 | 'DATE_RFC1036' => '%D, %d %M %y %H:%i:%s %O', |
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| 121 | 'DATE_RFC1123' => '%D, %d %M %Y %H:%i:%s %O', |
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| 122 | 'DATE_RSS' => '%D, %d %M %Y %H:%i:%s %O', |
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| 123 | 'DATE_W3C' => '%Y-%m-%dT%H:%i:%s%Q' |
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| 124 | ); |
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| 125 | |
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| 126 | if ( ! isset($formats[$fmt])) |
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| 127 | { |
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| 128 | return FALSE; |
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| 129 | } |
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| 130 | |
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| 131 | return mdate($formats[$fmt], $time); |
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| 132 | } |
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| 133 | } |
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| 134 | |
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| 135 | // ------------------------------------------------------------------------ |
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| 136 | |
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| 137 | /** |
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| 138 | * Timespan |
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| 139 | * |
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| 140 | * Returns a span of seconds in this format: |
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| 141 | * 10 days 14 hours 36 minutes 47 seconds |
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| 142 | * |
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| 143 | * @access public |
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| 144 | * @param integer a number of seconds |
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| 145 | * @param integer Unix timestamp |
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| 146 | * @return integer |
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| 147 | */ |
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| 148 | if ( ! function_exists('timespan')) |
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| 149 | { |
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| 150 | function timespan($seconds = 1, $time = '') |
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| 151 | { |
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| 152 | $CI =& get_instance(); |
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| 153 | $CI->lang->load('date'); |
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| 154 | |
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| 155 | if ( ! is_numeric($seconds)) |
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| 156 | { |
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| 157 | $seconds = 1; |
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| 158 | } |
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| 159 | |
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| 160 | if ( ! is_numeric($time)) |
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| 161 | { |
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| 162 | $time = time(); |
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| 163 | } |
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| 164 | |
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| 165 | if ($time <= $seconds) |
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| 166 | { |
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| 167 | $seconds = 1; |
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| 168 | } |
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| 169 | else |
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| 170 | { |
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| 171 | $seconds = $time - $seconds; |
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| 172 | } |
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| 173 | |
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| 174 | $str = ''; |
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| 175 | $years = floor($seconds / 31536000); |
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| 176 | |
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| 177 | if ($years > 0) |
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| 178 | { |
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| 179 | $str .= $years.' '.$CI->lang->line((($years > 1) ? 'date_years' : 'date_year')).', '; |
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| 180 | } |
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| 181 | |
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| 182 | $seconds -= $years * 31536000; |
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| 183 | $months = floor($seconds / 2628000); |
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| 184 | |
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| 185 | if ($years > 0 OR $months > 0) |
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| 186 | { |
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| 187 | if ($months > 0) |
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| 188 | { |
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| 189 | $str .= $months.' '.$CI->lang->line((($months > 1) ? 'date_months' : 'date_month')).', '; |
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| 190 | } |
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| 191 | |
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| 192 | $seconds -= $months * 2628000; |
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| 193 | } |
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| 194 | |
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| 195 | $weeks = floor($seconds / 604800); |
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| 196 | |
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| 197 | if ($years > 0 OR $months > 0 OR $weeks > 0) |
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| 198 | { |
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| 199 | if ($weeks > 0) |
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| 200 | { |
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| 201 | $str .= $weeks.' '.$CI->lang->line((($weeks > 1) ? 'date_weeks' : 'date_week')).', '; |
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| 202 | } |
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| 203 | |
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| 204 | $seconds -= $weeks * 604800; |
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| 205 | } |
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| 206 | |
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| 207 | $days = floor($seconds / 86400); |
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| 208 | |
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| 209 | if ($months > 0 OR $weeks > 0 OR $days > 0) |
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| 210 | { |
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| 211 | if ($days > 0) |
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| 212 | { |
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| 213 | $str .= $days.' '.$CI->lang->line((($days > 1) ? 'date_days' : 'date_day')).', '; |
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| 214 | } |
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| 215 | |
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| 216 | $seconds -= $days * 86400; |
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| 217 | } |
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| 218 | |
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| 219 | $hours = floor($seconds / 3600); |
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| 220 | |
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| 221 | if ($days > 0 OR $hours > 0) |
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| 222 | { |
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| 223 | if ($hours > 0) |
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| 224 | { |
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| 225 | $str .= $hours.' '.$CI->lang->line((($hours > 1) ? 'date_hours' : 'date_hour')).', '; |
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| 226 | } |
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| 227 | |
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| 228 | $seconds -= $hours * 3600; |
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| 229 | } |
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| 230 | |
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| 231 | $minutes = floor($seconds / 60); |
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| 232 | |
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| 233 | if ($days > 0 OR $hours > 0 OR $minutes > 0) |
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| 234 | { |
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| 235 | if ($minutes > 0) |
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| 236 | { |
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| 237 | $str .= $minutes.' '.$CI->lang->line((($minutes > 1) ? 'date_minutes' : 'date_minute')).', '; |
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| 238 | } |
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| 239 | |
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| 240 | $seconds -= $minutes * 60; |
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| 241 | } |
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| 242 | |
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| 243 | if ($str == '') |
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| 244 | { |
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| 245 | $str .= $seconds.' '.$CI->lang->line((($seconds > 1) ? 'date_seconds' : 'date_second')).', '; |
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| 246 | } |
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| 247 | |
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| 248 | return substr(trim($str), 0, -1); |
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| 249 | } |
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| 250 | } |
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| 251 | |
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| 252 | // ------------------------------------------------------------------------ |
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| 253 | |
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| 254 | /** |
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| 255 | * Number of days in a month |
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| 256 | * |
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| 257 | * Takes a month/year as input and returns the number of days |
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| 258 | * for the given month/year. Takes leap years into consideration. |
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| 259 | * |
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| 260 | * @access public |
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| 261 | * @param integer a numeric month |
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| 262 | * @param integer a numeric year |
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| 263 | * @return integer |
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| 264 | */ |
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| 265 | if ( ! function_exists('days_in_month')) |
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| 266 | { |
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| 267 | function days_in_month($month = 0, $year = '') |
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| 268 | { |
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| 269 | if ($month < 1 OR $month > 12) |
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| 270 | { |
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| 271 | return 0; |
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| 272 | } |
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| 273 | |
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| 274 | if ( ! is_numeric($year) OR strlen($year) != 4) |
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| 275 | { |
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| 276 | $year = date('Y'); |
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| 277 | } |
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| 278 | |
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| 279 | if ($month == 2) |
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| 280 | { |
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| 281 | if ($year % 400 == 0 OR ($year % 4 == 0 AND $year % 100 != 0)) |
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| 282 | { |
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| 283 | return 29; |
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| 284 | } |
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| 285 | } |
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| 286 | |
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| 287 | $days_in_month = array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31); |
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| 288 | return $days_in_month[$month - 1]; |
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| 289 | } |
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| 290 | } |
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| 291 | |
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| 292 | // ------------------------------------------------------------------------ |
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| 293 | |
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| 294 | /** |
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| 295 | * Converts a local Unix timestamp to GMT |
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| 296 | * |
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| 297 | * @access public |
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| 298 | * @param integer Unix timestamp |
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| 299 | * @return integer |
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| 300 | */ |
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| 301 | if ( ! function_exists('local_to_gmt')) |
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| 302 | { |
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| 303 | function local_to_gmt($time = '') |
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| 304 | { |
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| 305 | if ($time == '') |
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| 306 | $time = time(); |
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| 307 | |
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| 308 | return mktime( gmdate("H", $time), gmdate("i", $time), gmdate("s", $time), gmdate("m", $time), gmdate("d", $time), gmdate("Y", $time)); |
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| 309 | } |
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| 310 | } |
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| 311 | |
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| 312 | // ------------------------------------------------------------------------ |
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| 313 | |
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| 314 | /** |
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| 315 | * Converts GMT time to a localized value |
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| 316 | * |
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| 317 | * Takes a Unix timestamp (in GMT) as input, and returns |
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| 318 | * at the local value based on the timezone and DST setting |
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| 319 | * submitted |
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| 320 | * |
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| 321 | * @access public |
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| 322 | * @param integer Unix timestamp |
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| 323 | * @param string timezone |
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| 324 | * @param bool whether DST is active |
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| 325 | * @return integer |
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| 326 | */ |
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| 327 | if ( ! function_exists('gmt_to_local')) |
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| 328 | { |
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| 329 | function gmt_to_local($time = '', $timezone = 'UTC', $dst = FALSE) |
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| 330 | { |
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| 331 | if ($time == '') |
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| 332 | { |
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| 333 | return now(); |
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| 334 | } |
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| 335 | |
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| 336 | $time += timezones($timezone) * 3600; |
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| 337 | |
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| 338 | if ($dst == TRUE) |
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| 339 | { |
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| 340 | $time += 3600; |
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| 341 | } |
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| 342 | |
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| 343 | return $time; |
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| 344 | } |
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| 345 | } |
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| 346 | |
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| 347 | // ------------------------------------------------------------------------ |
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| 348 | |
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| 349 | /** |
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| 350 | * Converts a MySQL Timestamp to Unix |
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| 351 | * |
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| 352 | * @access public |
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| 353 | * @param integer Unix timestamp |
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| 354 | * @return integer |
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| 355 | */ |
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| 356 | if ( ! function_exists('mysql_to_unix')) |
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| 357 | { |
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| 358 | function mysql_to_unix($time = '') |
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| 359 | { |
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| 360 | // We'll remove certain characters for backward compatibility |
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| 361 | // since the formatting changed with MySQL 4.1 |
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| 362 | // YYYY-MM-DD HH:MM:SS |
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| 363 | |
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| 364 | $time = str_replace('-', '', $time); |
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| 365 | $time = str_replace(':', '', $time); |
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| 366 | $time = str_replace(' ', '', $time); |
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| 367 | |
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| 368 | // YYYYMMDDHHMMSS |
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| 369 | return mktime( |
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| 370 | substr($time, 8, 2), |
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| 371 | substr($time, 10, 2), |
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| 372 | substr($time, 12, 2), |
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| 373 | substr($time, 4, 2), |
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| 374 | substr($time, 6, 2), |
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| 375 | substr($time, 0, 4) |
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| 376 | ); |
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| 377 | } |
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| 378 | } |
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| 379 | |
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| 380 | // ------------------------------------------------------------------------ |
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| 381 | |
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| 382 | /** |
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| 383 | * Unix to "Human" |
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| 384 | * |
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| 385 | * Formats Unix timestamp to the following prototype: 2006-08-21 11:35 PM |
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| 386 | * |
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| 387 | * @access public |
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| 388 | * @param integer Unix timestamp |
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| 389 | * @param bool whether to show seconds |
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| 390 | * @param string format: us or euro |
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| 391 | * @return string |
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| 392 | */ |
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| 393 | if ( ! function_exists('unix_to_human')) |
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| 394 | { |
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| 395 | function unix_to_human($time = '', $seconds = FALSE, $fmt = 'us') |
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| 396 | { |
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| 397 | $r = date('Y', $time).'-'.date('m', $time).'-'.date('d', $time).' '; |
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| 398 | |
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| 399 | if ($fmt == 'us') |
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| 400 | { |
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| 401 | $r .= date('h', $time).':'.date('i', $time); |
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| 402 | } |
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| 403 | else |
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| 404 | { |
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| 405 | $r .= date('H', $time).':'.date('i', $time); |
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| 406 | } |
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| 407 | |
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| 408 | if ($seconds) |
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| 409 | { |
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| 410 | $r .= ':'.date('s', $time); |
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| 411 | } |
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| 412 | |
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| 413 | if ($fmt == 'us') |
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| 414 | { |
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| 415 | $r .= ' '.date('A', $time); |
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| 416 | } |
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| 417 | |
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| 418 | return $r; |
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| 419 | } |
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| 420 | } |
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| 421 | |
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| 422 | // ------------------------------------------------------------------------ |
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| 423 | |
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| 424 | /** |
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| 425 | * Convert "human" date to GMT |
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| 426 | * |
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| 427 | * Reverses the above process |
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| 428 | * |
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| 429 | * @access public |
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| 430 | * @param string format: us or euro |
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| 431 | * @return integer |
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| 432 | */ |
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| 433 | if ( ! function_exists('human_to_unix')) |
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| 434 | { |
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| 435 | function human_to_unix($datestr = '') |
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| 436 | { |
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| 437 | if ($datestr == '') |
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| 438 | { |
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| 439 | return FALSE; |
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| 440 | } |
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| 441 | |
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| 442 | $datestr = trim($datestr); |
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| 443 | $datestr = preg_replace("/\040+/", ' ', $datestr); |
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| 444 | |
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| 445 | if ( ! preg_match('/^[0-9]{2,4}\-[0-9]{1,2}\-[0-9]{1,2}\s[0-9]{1,2}:[0-9]{1,2}(?::[0-9]{1,2})?(?:\s[AP]M)?$/i', $datestr)) |
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| 446 | { |
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| 447 | return FALSE; |
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| 448 | } |
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| 449 | |
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| 450 | $split = explode(' ', $datestr); |
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| 451 | |
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| 452 | $ex = explode("-", $split['0']); |
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| 453 | |
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| 454 | $year = (strlen($ex['0']) == 2) ? '20'.$ex['0'] : $ex['0']; |
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| 455 | $month = (strlen($ex['1']) == 1) ? '0'.$ex['1'] : $ex['1']; |
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| 456 | $day = (strlen($ex['2']) == 1) ? '0'.$ex['2'] : $ex['2']; |
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| 457 | |
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| 458 | $ex = explode(":", $split['1']); |
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| 459 | |
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| 460 | $hour = (strlen($ex['0']) == 1) ? '0'.$ex['0'] : $ex['0']; |
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| 461 | $min = (strlen($ex['1']) == 1) ? '0'.$ex['1'] : $ex['1']; |
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| 462 | |
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| 463 | if (isset($ex['2']) && preg_match('/[0-9]{1,2}/', $ex['2'])) |
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| 464 | { |
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| 465 | $sec = (strlen($ex['2']) == 1) ? '0'.$ex['2'] : $ex['2']; |
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| 466 | } |
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| 467 | else |
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| 468 | { |
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| 469 | // Unless specified, seconds get set to zero. |
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| 470 | $sec = '00'; |
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| 471 | } |
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| 472 | |
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| 473 | if (isset($split['2'])) |
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| 474 | { |
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| 475 | $ampm = strtolower($split['2']); |
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| 476 | |
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| 477 | if (substr($ampm, 0, 1) == 'p' AND $hour < 12) |
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| 478 | $hour = $hour + 12; |
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| 479 | |
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| 480 | if (substr($ampm, 0, 1) == 'a' AND $hour == 12) |
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| 481 | $hour = '00'; |
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| 482 | |
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| 483 | if (strlen($hour) == 1) |
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| 484 | $hour = '0'.$hour; |
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| 485 | } |
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| 486 | |
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| 487 | return mktime($hour, $min, $sec, $month, $day, $year); |
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| 488 | } |
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| 489 | } |
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| 490 | |
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| 491 | // ------------------------------------------------------------------------ |
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| 492 | |
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| 493 | /** |
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| 494 | * Timezone Menu |
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| 495 | * |
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| 496 | * Generates a drop-down menu of timezones. |
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| 497 | * |
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| 498 | * @access public |
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| 499 | * @param string timezone |
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| 500 | * @param string classname |
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| 501 | * @param string menu name |
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| 502 | * @return string |
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| 503 | */ |
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| 504 | if ( ! function_exists('timezone_menu')) |
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| 505 | { |
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| 506 | function timezone_menu($default = 'UTC', $class = "", $name = 'timezones') |
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| 507 | { |
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| 508 | $CI =& get_instance(); |
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| 509 | $CI->lang->load('date'); |
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| 510 | |
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| 511 | if ($default == 'GMT') |
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| 512 | $default = 'UTC'; |
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| 513 | |
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| 514 | $menu = '<select name="'.$name.'"'; |
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| 515 | |
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| 516 | if ($class != '') |
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| 517 | { |
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| 518 | $menu .= ' class="'.$class.'"'; |
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| 519 | } |
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| 520 | |
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| 521 | $menu .= ">\n"; |
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| 522 | |
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| 523 | foreach (timezones() as $key => $val) |
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| 524 | { |
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| 525 | $selected = ($default == $key) ? " selected='selected'" : ''; |
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| 526 | $menu .= "<option value='{$key}'{$selected}>".$CI->lang->line($key)."</option>\n"; |
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| 527 | } |
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| 528 | |
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| 529 | $menu .= "</select>"; |
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| 530 | |
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| 531 | return $menu; |
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| 532 | } |
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| 533 | } |
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| 534 | |
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| 535 | // ------------------------------------------------------------------------ |
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| 536 | |
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| 537 | /** |
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| 538 | * Timezones |
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| 539 | * |
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| 540 | * Returns an array of timezones. This is a helper function |
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| 541 | * for various other ones in this library |
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| 542 | * |
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| 543 | * @access public |
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| 544 | * @param string timezone |
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| 545 | * @return string |
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| 546 | */ |
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| 547 | if ( ! function_exists('timezones')) |
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| 548 | { |
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| 549 | function timezones($tz = '') |
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| 550 | { |
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| 551 | // Note: Don't change the order of these even though |
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| 552 | // some items appear to be in the wrong order |
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| 553 | |
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| 554 | $zones = array( |
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| 555 | 'UM12' => -12, |
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| 556 | 'UM11' => -11, |
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| 557 | 'UM10' => -10, |
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| 558 | 'UM95' => -9.5, |
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| 559 | 'UM9' => -9, |
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| 560 | 'UM8' => -8, |
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| 561 | 'UM7' => -7, |
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| 562 | 'UM6' => -6, |
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| 563 | 'UM5' => -5, |
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| 564 | 'UM45' => -4.5, |
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| 565 | 'UM4' => -4, |
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| 566 | 'UM35' => -3.5, |
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| 567 | 'UM3' => -3, |
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| 568 | 'UM2' => -2, |
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| 569 | 'UM1' => -1, |
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| 570 | 'UTC' => 0, |
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| 571 | 'UP1' => +1, |
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| 572 | 'UP2' => +2, |
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| 573 | 'UP3' => +3, |
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| 574 | 'UP35' => +3.5, |
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| 575 | 'UP4' => +4, |
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| 576 | 'UP45' => +4.5, |
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| 577 | 'UP5' => +5, |
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| 578 | 'UP55' => +5.5, |
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| 579 | 'UP575' => +5.75, |
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| 580 | 'UP6' => +6, |
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| 581 | 'UP65' => +6.5, |
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| 582 | 'UP7' => +7, |
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| 583 | 'UP8' => +8, |
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| 584 | 'UP875' => +8.75, |
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| 585 | 'UP9' => +9, |
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| 586 | 'UP95' => +9.5, |
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| 587 | 'UP10' => +10, |
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| 588 | 'UP105' => +10.5, |
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| 589 | 'UP11' => +11, |
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| 590 | 'UP115' => +11.5, |
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| 591 | 'UP12' => +12, |
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| 592 | 'UP1275' => +12.75, |
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| 593 | 'UP13' => +13, |
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| 594 | 'UP14' => +14 |
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| 595 | ); |
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| 596 | |
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| 597 | if ($tz == '') |
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| 598 | { |
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| 599 | return $zones; |
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| 600 | } |
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| 601 | |
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| 602 | if ($tz == 'GMT') |
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| 603 | $tz = 'UTC'; |
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| 604 | |
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| 605 | return ( ! isset($zones[$tz])) ? 0 : $zones[$tz]; |
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| 606 | } |
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| 607 | } |
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| 608 | |
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| 609 | |
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| 610 | /* End of file date_helper.php */ |
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| 611 | /* Location: ./system/helpers/date_helper.php */ |
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