functions/date.php

   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     **/
  11
  12    $date_php = true;
  13
  14    function getMinutes($hour) {
  15       $date = $hour;
  16
  17       if (($hour == 0) || ($hour == "00"))
  18          $date = "00";
  19       else if (($hour == 1) || ($hour == "01"))
  20          $date = "01";
  21       else if (($hour == 2) || ($hour == "02"))
  22          $date = "02";
  23       else if (($hour == 3) || ($hour == "03"))
  24          $date = "03";
  25       else if (($hour == 4) || ($hour == "04"))
  26          $date = "04";
  27       else if (($hour == 5) || ($hour == "05"))
  28          $date = "05";
  29       else if (($hour == 6) || ($hour == "06"))
  30          $date = "06";
  31       else if (($hour == 7) || ($hour == "07"))
  32          $date = "07";
  33       else if (($hour == 8) || ($hour == "08"))
  34          $date = "08";
  35       else if (($hour == 9) || ($hour == "09"))
  36          $date = "09";
  37
  38       return $date;
  39    }
  40
  41    // corrects a time stamp to be the local time
  42    function getGMTSeconds($stamp, $gmt) {
  43       if (($gmt == "Pacific") || ($gmt == "PST") || ($gmt == "PDT"))
  44          $gmt = "-0800";
  45       if (($gmt == "Eastern") || ($gmt == "EST") || ($gmt == "EDT"))
  46          $gmt = "-0500";
  47       if (($gmt == "Central") || ($gmt == "CST") || ($gmt == "CDT"))
  48          $gmt = "-0600";
  49       if (($gmt == "Mountain") || ($gmt == "MST") || ($gmt == "MDT"))
  50          $gmt = "-0700";
  51
  52       if (substr($gmt, 0, 1) == "-") {
  53          $neg = true;
  54          $gmt = substr($gmt, 1, strlen($gmt));
  55       } else if (substr($gmt, 0, 1) == "+") {
  56          $neg = false;
  57          $gmt = substr($gmt, 1, strlen($gmt));
  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
  71       $stamp = (int)$stamp - (int)$gmt + (int)$current;
  72
  73       return $stamp;
  74    }
  75
  76    function getHour($hour) {
  77       $time = explode(":", $hour);
  78       return $time[0];
  79    }
  80
  81    function getMinute($min) {
  82       $time = explode(":", $min);
  83       return $time[1];
  84    }
  85
  86    function getSecond($sec) {
  87       $time = explode(":", $sec);
  88       return $time[2];
  89    }
  90
  91    function getMonthNum($month) {
  92       if (eregi("jan|january", $month, $tmp))
  93          $date = "01";
  94       else if (eregi("feb|february|febuary", $month, $tmp))
  95          $date = "02";
  96       else if (eregi("mar|march", $month, $tmp))
  97          $date = "03";
  98       else if (eregi("apr|april", $month, $tmp))
  99          $date = "04";
 100       else if (eregi("may", $month, $tmp))
 101          $date = "05";
 102       else if (eregi("jun|june", $month, $tmp))
 103          $date = "06";
 104       else if (eregi("jul|july", $month, $tmp))
 105          $date = "07";
 106       else if (eregi("aug|august", $month, $tmp))
 107          $date = "08";
 108       else if (eregi("sep|sept|september", $month, $tmp))
 109          $date = "09";
 110       else if (eregi("oct|october", $month, $tmp))
 111          $date = "10";
 112       else if (eregi("nov|november", $month, $tmp))
 113          $date = "11";
 114       else if (eregi("dec|december", $month, $tmp))
 115          $date = "12";
 116
 117       return $date;
 118    }
 119
 120    function getDayOfWeek($day) {
 121       $date = "{WEEKDAY}";
 122
 123       if (eregi("(mon|monday)", $day, $tmp))
 124          $date = "Mon";
 125       else if (eregi("(tue|tuesday)", $day, $tmp))
 126          $date = "Tue";
 127       else if (eregi("(wed|wednesday)", $day, $tmp))
 128          $date = "Wed";
 129       else if (eregi("(thurs|thu|thursday)", $day, $tmp))
 130          $date = "Thu";
 131       else if (eregi("(fri|friday)", $day, $tmp))
 132          $date = "Fri";
 133       else if (eregi("(sat|saturday)", $day, $tmp))
 134          $date = "Sat";
 135       else if (eregi("(sun|sunday)", $day, $tmp))
 136          $date = "Sun";
 137
 138       return $date;
 139    }
 140
 141    function getDayOfMonth($day) {
 142       return ereg_replace("^0", "", $day); /* remove a preceeding 0 */
 143    }
 144
 145    function getMonth($month) {
 146       $date = "{MONTH}";
 147       if (eregi("jan|january", $month, $tmp))
 148          $date = "Jan";
 149       else if (eregi("feb|february|febuary", $month, $tmp))
 150          $date = "Feb";
 151       else if (eregi("mar|march", $month, $tmp))
 152          $date = "Mar";
 153       else if (eregi("apr|april", $month, $tmp))
 154          $date = "Apr";
 155       else if (eregi("may", $month, $tmp))
 156          $date = "May";
 157       else if (eregi("jun|june", $month, $tmp))
 158          $date = "Jun";
 159       else if (eregi("jul|july", $month, $tmp))
 160          $date = "Jul";
 161       else if (eregi("aug|august", $month, $tmp))
 162          $date = "Aug";
 163       else if (eregi("sep|sept|september", $month, $tmp))
 164          $date = "Sep";
 165       else if (eregi("oct|october", $month, $tmp))
 166          $date = "Oct";
 167       else if (eregi("nov|november", $month, $tmp))
 168          $date = "Nov";
 169       else if (eregi("dec|december", $month, $tmp))
 170          $date = "Dec";
 171
 172       return $date;
 173    }
 174
 175    function getYear($year) {
 176       return $year;
 177    }
 178
 179    function getLongDateString($stamp) {
 180       return date("D, F j, Y g:i a", $stamp);
 181    }
 182
 183    function getDateString($stamp) {
 184       $now = time();
 185       $midnight = $now - ($now % 86400) + 14400;
 186
 187       if ($midnight < $stamp) {
 188          // Today
 189          return date("g:i a", $stamp);
 190       } else if ($midnight - 604800 < $stamp) {
 191          // This week
 192          return date("D, g:i a", $stamp);
 193       } else {
 194          // before this week
 195          return date("M j, Y", $stamp);
 196       }
 197    }
 198
 199    function getTimeStamp($dateParts) {
 200       /** $dateParts[0] == <day of week>   Mon, Tue, Wed
 201        ** $dateParts[1] == <day of month>  23
 202        ** $dateParts[2] == <month>         Jan, Feb, Mar
 203        ** $dateParts[3] == <year>          1999
 204        ** $dateParts[4] == <time>          18:54:23 (HH:MM:SS)
 205        ** $dateParts[5] == <from GMT>      +0100
 206        ** $dateParts[6] == <zone>          (EDT)
 207        **
 208        ** NOTE:  In RFC 822, it states that <day of week> is optional.
 209        **        In that case, dateParts[0] would be the <day of month>
 210        **        and everything would be bumped up one.
 211        **/
 212
 213       // Simply check to see if the first element in the dateParts
 214       // array is an integer or not.
 215       //    Since the day of week is optional, this check is needed.
 216       //
 217       //    The old code used eregi("mon|tue|wed|thu|fri|sat|sun",
 218       //    $dateParts[0], $tmp) to find if the first element was the
 219       //    day of week or day of month. This is an expensive call
 220       //    (processing time) to have inside a loop. Doing it this way
 221       //    saves quite a bit of time for large mailboxes.
 222       //
 223       //    It is also quicker to call explode only once rather than
 224       //    the 3 times it was getting called by calling the functions
 225       //    getHour, getMinute, and getSecond.
 226       //
 227       if (intval(trim($dateParts[0])) > 0) {
 228          $time = explode(":", $dateParts[3]);
 229          $d[0] = $time[0];
 230          $d[1] = $time[1];
 231          $d[2] = $time[2];
 232          $d[3] = getMonthNum(trim($dateParts[1]));
 233          $d[4] = getDayOfMonth(trim($dateParts[0]));
 234          $d[5] = getYear(trim($dateParts[2]));
 235          return getGMTSeconds(mktime($d[0], $d[1], $d[2], $d[3], $d[4], $d[5]), $dateParts[4]);
 236       }
 237       $time = explode(":", $dateParts[4]);
 238       $d[0] = $time[0];
 239       $d[1] = $time[1];
 240       $d[2] = $time[2];
 241       $d[3] = getMonthNum(trim($dateParts[2]));
 242       $d[4] = getDayOfMonth(trim($dateParts[1]));
 243       $d[5] = getYear(trim($dateParts[3]));
 244       return getGMTSeconds(mktime($d[0], $d[1], $d[2], $d[3], $d[4], $d[5]), $dateParts[5]);
 245    }
 246
 247    // I use this function for profiling. Should never be called in
 248    // actual versions of squirrelmail released to public.
 249    function getmicrotime() {
 250       $mtime = microtime();
 251       $mtime = explode(" ",$mtime);
 252       $mtime = $mtime[1] + $mtime[0];
 253       return ($mtime);
 254    }
 255 ?>