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