Date.php

   1 <?php
   2 /*=====================================================================*\
   3 || ###################################################################
   4 || # Blue Static ISSO Framework
   5 || # Copyright ©2002-[#]year[#] Blue Static
   6 || #
   7 || # This program is free software; you can redistribute it and/or modify
   8 || # it under the terms of the GNU General Public License as published by
   9 || # the Free Software Foundation; version [#]gpl[#] of the License.
  10 || #
  11 || # This program is distributed in the hope that it will be useful, but
  12 || # WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  13 || # or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
  14 || # more details.
  15 || #
  16 || # You should have received a copy of the GNU General Public License along
  17 || # with this program; if not, write to the Free Software Foundation, Inc.,
  18 || # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
  19 || ###################################################################
  20 \*=====================================================================*/
  21
  22 /**
  23 * Date formatting system (Date.php)
  24 *
  25 * @package      ISSO
  26 */
  27
  28 /**
  29 * Defined constant time
  30 */
  31 define('TIMENOW', time());
  32
  33 /**
  34 * Date Formatting System
  35 *
  36 * This framework wraps date and time functions into one neat little
  37 * package that takes care of modifying timestamps to meet the right
  38 * time zone
  39 *
  40 * @author               Blue Static
  41 * @copyright    Copyright ©2002 - [#]year[#], Blue Static
  42 * @version              $Revision$
  43 * @package              ISSO
  44 *
  45 */
  46 class BSDate
  47 {
  48         /**
  49         * Offset in seconds; this is set using fetch_offset()
  50         * @var  integer
  51         */
  52         private $offset = 0;
  53
  54         // ###################################################################
  55         /**
  56         * Sets the user time zone and then calculates the total offset
  57         *
  58         * @param        float   User time zone
  59         */
  60         public function setUserTimeZone($usertz)
  61         {
  62                 $this->offset = $usertz * 3600;
  63         }
  64
  65         // ###################################################################
  66         /**
  67         * Formats a UNIX timestamp to a certain date format in the proper time
  68         * zone
  69         *
  70         * @param        string  Format of the date (same as PHP's date() function)
  71         * @param        integer UNIX timestamp to format
  72         * @param        bool    Adjust the date to the user's language?
  73         *
  74         * @return       string  Formatted date
  75         */
  76         public function format($format, $timestamp = TIMENOW, $adjust = true)
  77         {
  78                 if ($adjust)
  79                 {
  80                         $timestamp += $this->offset;
  81                 }
  82                 return gmdate($format, $timestamp);
  83         }
  84
  85         // ###################################################################
  86         /**
  87         * Fetches an array of timezone names indexed by their offset
  88         *
  89         * @return       array   List of timezones
  90         */
  91         public static function FetchTimeZoneList()
  92         {
  93                 $opt = array();
  94
  95                 $opt['-12']             = _('(GMT - 12:00) Enitwetok, Kwajalien');
  96                 $opt['-11']             = _('(GMT - 11:00) Midway Island, Samoa');
  97                 $opt['-10']             = _('(GMT - 10:00) Hawaii');
  98                 $opt['-9']              = _('(GMT - 9:00) Alaska');
  99                 $opt['-8']              = _('(GMT - 8:00) Pacific Time (US &amp; Canada)');
 100                 $opt['-7']              = _('(GMT - 7:00) Mountain Time (US &amp; Canada)');
 101                 $opt['-6']              = _('(GMT - 6:00) Central Time (US &amp; Canada)');
 102                 $opt['-5']              = _('(GMT - 5:00) Eastern Time (US &amp; Canada)');
 103                 $opt['-4']              = _('(GMT - 4:00) Atlantic Time (Canada)');
 104                 $opt['-3.5']    = _('(GMT - 3:30) Newfoundland');
 105                 $opt['-3']              = _('(GMT - 3:00)  Brazil, Buenos Aires, Georgetown');
 106                 $opt['-2']              = _('(GMT - 2:00) Mid-Atlantic, St. Helena');
 107                 $opt['-1']              = _('(GMT - 1:00) Azores, Cape Verde Islands');
 108                 $opt['0']               = _('(GMT) London, Dublin, Casablanca');
 109                 $opt['1']               = _('(GMT + 1:00) Berlin, Madrid, Paris');
 110                 $opt['2']               = _('(GMT + 2:00) Kaliningrad, South Africa, Warsaws');
 111                 $opt['3']               = _('(GMT + 3:00) Baghdad, Moscow, Nairobi');
 112                 $opt['3.5']             = _('(GMT + 3:30) Tehran');
 113                 $opt['4']               = _('(GMT + 4:00) Abu Dhabi, Tbilisi, Muscat');
 114                 $opt['4.5']             = _('(GMT + 4:30) Kabul');
 115                 $opt['5']               = _('(GMT + 5:00) Ekaterinburg, Islamabad, Tashkent');
 116                 $opt['5.5']             = _('(GMT + 5:30) Calcutta, Madras, New Delhi');
 117                 $opt['6']               = _('(GMT + 6:00) Almaty, Colomba, Dhakra');
 118                 $opt['7']               = _('(GMT + 7:00) Bangkok, Hanoi, Jakarta');
 119                 $opt['8']               = _('(GMT + 8:00) Beijing, Hong Kong, Singapore');
 120                 $opt['9']               = _('(GMT + 9:00) Seoul, Tokyo, Yakutsk');
 121                 $opt['9.5']             = _('(GMT + 9:30) Adelaide, Darwin');
 122                 $opt['10']              = _('(GMT + 10:00) Guam, Papua New Guinea, Sydney');
 123                 $opt['11']              = _('(GMT + 11:00) Magadan, New Caledonia, Solomon Islands');
 124                 $opt['12']              = _('(GMT + 12:00) Auckland, Wellington, Fiji');
 125
 126                 return $opt;
 127         }
 128 }
 129
 130 /*=====================================================================*\
 131 || ###################################################################
 132 || # $HeadURL$
 133 || # $Id$
 134 || ###################################################################
 135 \*=====================================================================*/
 136 ?>