[Sommaire] [Imprimer]

   1  <?php
   2  # ***** BEGIN LICENSE BLOCK *****
   3  # This file is part of Clearbricks.
   4  # Copyright (c) 2006 Olivier Meunier and contributors. All rights
   5  # reserved.
   6  #
   7  # Clearbricks 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; either version 2 of the License, or
  10  # (at your option) any later version.
  11  # 
  12  # Clearbricks is distributed in the hope that it will be useful,
  13  # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  # GNU General Public License for more details.
  16  # 
  17  # You should have received a copy of the GNU General Public License
  18  # along with Clearbricks; if not, write to the Free Software
  19  # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  #
  21  # ***** END LICENSE BLOCK *****
  22  
  23  class dt
  24  {
  25  	public static function str($p,$ts=null,$tz=null)
  26      {
  27          if ($ts === NULL) { $ts = time(); }
  28          
  29          $hash = '799b4e471dc78154865706469d23d512';
  30          $p = preg_replace('/(?<!%)%(a|A)/','{{'.$hash.'__$1%w__}}',$p);
  31          $p = preg_replace('/(?<!%)%(b|B)/','{{'.$hash.'__$1%m__}}',$p);
  32          
  33          if ($tz) {
  34              $T = date('T');
  35              self::setTZ($tz);
  36          }
  37          
  38          $res = strftime($p,$ts);
  39          
  40          if ($tz) {
  41              self::setTZ($T);
  42          }
  43          
  44          $res = preg_replace_callback('/{{'.$hash.'__(a|A|b|B)([0-9]{1,2})__}}/',array('self','_callback'),$res);
  45          
  46          return $res;
  47      }
  48      
  49  	public static function dt2str($p,$dt,$tz=null)
  50      {
  51          return dt::str($p,strtotime($dt),$tz);
  52      }
  53      
  54  	public static function iso8601($ts,$tz='UTC')
  55      {
  56          $o = self::getTimeOffset($tz,$ts);
  57          $o = sprintf('%02u:%02u',$o/3600,($o%3600)/60);
  58          return date('Y-m-d\\TH:i:s',$ts).'+'.$o;
  59      }
  60      
  61  	public static function rfc822($ts,$tz='UTC')
  62      {
  63          # Get offset
  64          $o = self::getTimeOffset($tz,$ts);
  65          $o = sprintf('%02u%02u',$o/3600,($o%3600)/60);
  66          
  67          return strftime('%a, %d %b %Y %H:%M:%S +'.$o,$ts);
  68      }
  69      
  70  	public static function setTZ($tz)
  71      {
  72          if (function_exists('date_default_timezone_set')) {
  73              date_default_timezone_set($tz);
  74              return;
  75          }
  76          
  77          if (!ini_get('safe_mode')) {
  78              putenv('TZ='.$tz);
  79          }
  80      }
  81      
  82  	public static function getTimeOffset($utc_tz,$ts=false)
  83      {
  84          if (!$ts) {
  85              $ts = time();
  86          }
  87          
  88          $server_tz = date('T',$ts);
  89          $server_offset = date('Z',$ts);
  90          
  91          self::setTZ($utc_tz);
  92          $cur_offset = date('Z',$ts);
  93          
  94          self::setTZ($server_tz);
  95          
  96          return $cur_offset-$server_offset;
  97      }
  98      
  99  	public static function toUTC($ts)
 100      {
 101          return $ts + self::getTimeOffset('UTC',$ts);
 102      }
 103      
 104  	public static function addTimeZone($tz,$ts=false)
 105      {
 106          if (!$ts) {
 107              $ts = time();
 108          }
 109          
 110          return $ts + self::getTimeOffset($tz,$ts);
 111      }
 112      
 113  	public static function getZones($flip=false,$groups=false)
 114      {
 115          try {
 116              $tz =  file(dirname(__FILE__).'/tz.dat');
 117          } catch (Exception $e) {
 118              return array();
 119          }
 120          
 121          $res = array();
 122          
 123          foreach ($tz as $v)
 124          {
 125              $v = trim($v);
 126              if ($v) {
 127                  $res[$v] = str_replace('_',' ',$v);
 128              }
 129          }
 130          
 131          if ($flip) {
 132              $res = array_flip($res);
 133              if ($groups) {
 134                  $tmp = array();
 135                  foreach ($res as $k => $v) {
 136                      $g = explode('/',$k);
 137                      $tmp[$g[0]][$k] = $v;
 138                  }
 139                  $res = $tmp;
 140              }
 141          }
 142          
 143          return $res;
 144      }
 145      
 146  	private static function _callback($args)
 147      {
 148          $b = array(1=>'_Jan',2=>'_Feb',3=>'_Mar',4=>'_Apr',5=>'_May',6=>'_Jun',
 149          7=>'_Jul',8=>'_Aug',9=>'_Sep',10=>'_Oct',11=>'_Nov',12=>'_Dec');
 150          
 151          $B = array(1=>'January',2=>'February',3=>'March',4=>'April',
 152          5=>'May',6=>'June',7=>'July',8=>'August',9=>'September',
 153          10=>'October',11=>'November',12=>'December');
 154          
 155          $a = array(1=>'_Mon',2=>'_Tue',3=>'_Wed',4=>'_Thu',5=>'_Fri',
 156          6=>'_Sat',0=>'_Sun');
 157          
 158          $A = array(1=>'Monday',2=>'Tuesday',3=>'Wednesday',4=>'Thursday',
 159          5=>'Friday',6=>'Saturday',0=>'Sunday');
 160          
 161          return __(${$args[1]}[(integer) $args[2]]);
 162      }
 163  }
 164  ?>