[Sommaire] [Imprimer]

   1  <?php
   2      /**
   3               **  date.php
   4               **
   5               **  Takes a date and parses it into a usable format.  The form that a
   6               **  date SHOULD arrive in is:
   7               **        <Tue,> 29 Jun 1999 09:52:11 -0500 (EDT)
   8               **  (as specified in RFC 822) -- 'Tue' is optional
   9               **
  10               **  $Id: class.transformdate.inc.php 18876 2005-07-23 15:52:49Z ralfbecker $
  11               **/
  12  
  13      class transformdate
  14      {
  15  
  16          // corrects a time stamp to be the local time
  17  		function getGMTSeconds($stamp, $gmt) 
  18          {
  19              global $invert_time;
  20  
  21              if (($gmt == 'Pacific') || ($gmt == 'PST'))
  22                  $gmt = '-0800';
  23              else if (($gmt == 'EDT'))
  24                  $gmt = '-0400';
  25              else if (($gmt == 'Eastern') || ($gmt == 'EST') || ($gmt == 'CDT'))
  26                  $gmt = '-0500';
  27              else if (($gmt == 'Central') || ($gmt == 'CST') || ($gmt == 'MDT'))
  28                  $gmt = '-0600';
  29              else if (($gmt == 'Mountain') || ($gmt == 'MST') || ($gmt == 'PDT'))
  30                  $gmt = '-0700';
  31              else if ($gmt == 'BST')
  32                  $gmt = '+0100';
  33              else if ($gmt == 'EET')
  34                  $gmt = '+0200';
  35              else if ($gmt == 'GMT')
  36                  $gmt = '+0000';
  37              else if ($gmt == 'HKT')
  38                  $gmt = '+0800';
  39              else if ($gmt == 'IST')
  40                  $gmt = '+0200';
  41              else if ($gmt == 'JST')
  42                  $gmt = '+0900';
  43              else if ($gmt == 'MET')
  44                  $gmt = '+0100';
  45              else if ($gmt == 'MET DST' || $gmt == 'METDST')
  46                  $gmt = '+0200';
  47                  
  48              if (substr($gmt, 0, 1) == '-') 
  49              {
  50                  $neg = true;
  51                  $gmt = substr($gmt, 1, strlen($gmt));
  52              } 
  53              else if (substr($gmt, 0, 1) == '+') 
  54              {
  55                  $neg = false;
  56                  $gmt = substr($gmt, 1, strlen($gmt));
  57              } 
  58              else
  59                  $neg = false;
  60              
  61              $gmt = substr($gmt, 0, 2);
  62              $gmt = $gmt * 3600;
  63              if ($neg == true)
  64                  $gmt = "-$gmt";
  65              else
  66                  $gmt = "+$gmt";
  67                  
  68              /** now find what the server is at **/
  69              $current = date('Z', time());
  70              if ($invert_time)
  71                  $current = - $current;
  72              $stamp = (int)$stamp - (int)$gmt + (int)$current;
  73              
  74              return $stamp;
  75          }
  76          
  77  		function getLongDateString($stamp) 
  78          {
  79              return date('D, F j, Y g:i a', $stamp);
  80          }
  81          
  82  		function getDateString($stamp) 
  83          {
  84          
  85              global $invert_time;
  86              
  87              $now = time();
  88              $dateZ = date('Z', $now);
  89              if ($invert_time)
  90                  $dateZ = - $dateZ;
  91              $midnight = $now - ($now % 86400) - $dateZ;
  92              
  93              if ($midnight < $stamp) 
  94              {
  95                  // Today
  96                  return date('g:i a', $stamp);
  97              } 
  98              else if ($midnight - (60 * 60 * 24 * 6) < $stamp) 
  99              {
 100                  // This week
 101                  return date('D, g:i a', $stamp);
 102              } 
 103              else 
 104              {
 105                  // before this week
 106                  return date('M j, Y', $stamp);
 107              }
 108          }
 109          
 110  		function getTimeStamp($dateParts) 
 111          {
 112              /** $dateParts[0] == <day of week>   Mon, Tue, Wed
 113               ** $dateParts[1] == <day of month>  23
 114               ** $dateParts[2] == <month>  Jan, Feb, Mar
 115               ** $dateParts[3] == <year>    1999
 116               ** $dateParts[4] == <time>      18:54:23 (HH:MM:SS)
 117               ** $dateParts[5] == <from GMT>      +0100
 118               ** $dateParts[6] == <zone>          (EDT)
 119               **
 120               ** NOTE:  In RFC 822, it states that <day of week> is optional.
 121               **       In that case, dateParts[0] would be the <day of month>
 122               **        and everything would be bumped up one.
 123               **/
 124  
 125              // Simply check to see if the first element in the dateParts
 126              // array is an integer or not.
 127              //    Since the day of week is optional, this check is needed.  
 128              //    
 129              //    The old code used eregi('mon|tue|wed|thu|fri|sat|sun',
 130              //    $dateParts[0], $tmp) to find if the first element was the
 131              //    day of week or day of month. This is an expensive call
 132              //    (processing time) to have inside a loop. Doing it this way
 133              //    saves quite a bit of time for large mailboxes.
 134              //
 135              //    It is also quicker to call explode only once rather than
 136              //    the 3 times it was getting called by calling the functions
 137              //    getHour, getMinute, and getSecond.
 138              //
 139              if (intval(trim($dateParts[0])) > 0) 
 140              {
 141                  $string = $dateParts[0] . ' ' . $dateParts[1] . ' ' . 
 142                                       $dateParts[2] . ' ' . $dateParts[3];
 143                  return $this->getGMTSeconds(strtotime($string), $dateParts[4]);
 144              }
 145              $string = $dateParts[0] . ' ' . $dateParts[1] . ' ' .
 146                                  $dateParts[2] . ' ' . $dateParts[3] . ' ' . $dateParts[4];
 147              if (isset($dateParts[5]))
 148                  return $this->getGMTSeconds(strtotime($string), $dateParts[5]);
 149              else
 150                  return $this->getGMTSeconds(strtotime($string), '');
 151          }
 152          
 153          // I use this function for profiling. Should never be called in
 154          // actual versions of felamimail released to public.
 155  		function getmicrotime() 
 156          {
 157              $mtime = microtime();
 158              $mtime = explode(' ',$mtime);
 159              $mtime = $mtime[1] + $mtime[0];
 160              return ($mtime);
 161          }
 162      }
 163  ?>