functions/date.php3

   1 <?
   2    /**
   3     **  date.php3
   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)
   9     **
  10     **/
  11
  12    function getHour($hour) {
  13       $time = explode(":", $hour);
  14       return $time[0];
  15    }
  16
  17    function getMinute($min) {
  18       $time = explode(":", $min);
  19       return $time[1];
  20    }
  21
  22    function getSecond($sec) {
  23       $time = explode(":", $sec);
  24       return $time[2];
  25    }
  26
  27    function getMonthNum($month) {
  28       if (eregi("jan|january", $month, $tmp))
  29          $date = "01";
  30       else if (eregi("feb|february|febuary", $month, $tmp))
  31          $date = "02";
  32       else if (eregi("mar|march", $month, $tmp))
  33          $date = "03";
  34       else if (eregi("apr|april", $month, $tmp))
  35          $date = "04";
  36       else if (eregi("may", $month, $tmp))
  37          $date = "05";
  38       else if (eregi("jun|june", $month, $tmp))
  39          $date = "06";
  40       else if (eregi("jul|july", $month, $tmp))
  41          $date = "07";
  42       else if (eregi("aug|august", $month, $tmp))
  43          $date = "08";
  44       else if (eregi("sep|sept|september", $month, $tmp))
  45          $date = "09";
  46       else if (eregi("oct|october", $month, $tmp))
  47          $date = "10";
  48       else if (eregi("nov|november", $month, $tmp))
  49          $date = "11";
  50       else if (eregi("dec|december", $month, $tmp))
  51          $date = "12";
  52
  53       return $date;
  54    }
  55
  56    function getDayOfWeek($day) {
  57       $date = "{WEEKDAY}";
  58
  59       if (eregi("(mon|monday)", $day, $tmp))
  60          $date = "Mon";
  61       else if (eregi("(tue|tuesday)", $day, $tmp))
  62          $date = "Tue";
  63       else if (eregi("(wed|wednesday)", $day, $tmp))
  64          $date = "Wed";
  65       else if (eregi("(thurs|thu|thursday)", $day, $tmp))
  66          $date = "Thu";
  67       else if (eregi("(fri|friday)", $day, $tmp))
  68          $date = "Fri";
  69       else if (eregi("(sat|saturday)", $day, $tmp))
  70          $date = "Sat";
  71       else if (eregi("(sun|sunday)", $day, $tmp))
  72          $date = "Sun";
  73
  74       return $date;
  75    }
  76
  77    function getDayOfMonth($day) {
  78       return ereg_replace("^0", "", $day); /* remove a preceeding 0 */
  79    }
  80
  81    function getMonth($month) {
  82       $date = "{MONTH}";
  83       if (eregi("jan|january", $month, $tmp))
  84          $date = "Jan";
  85       else if (eregi("feb|february|febuary", $month, $tmp))
  86          $date = "Feb";
  87       else if (eregi("mar|march", $month, $tmp))
  88          $date = "Mar";
  89       else if (eregi("apr|april", $month, $tmp))
  90          $date = "Apr";
  91       else if (eregi("may", $month, $tmp))
  92          $date = "May";
  93       else if (eregi("jun|june", $month, $tmp))
  94          $date = "Jun";
  95       else if (eregi("jul|july", $month, $tmp))
  96          $date = "Jul";
  97       else if (eregi("aug|august", $month, $tmp))
  98          $date = "Aug";
  99       else if (eregi("sep|sept|september", $month, $tmp))
 100          $date = "Sep";
 101       else if (eregi("oct|october", $month, $tmp))
 102          $date = "Oct";
 103       else if (eregi("nov|november", $month, $tmp))
 104          $date = "Nov";
 105       else if (eregi("dec|december", $month, $tmp))
 106          $date = "Dec";
 107
 108       return $date;
 109    }
 110
 111    function getYear($year) {
 112       return $year;
 113    }
 114
 115    function getDateString($dateParts) {
 116       /** $dateParts[0] == <day of week>   Mon, Tue, Wed
 117        ** $dateParts[1] == <day of month>  23
 118        ** $dateParts[2] == <month>         Jan, Feb, Mar
 119        ** $dateParts[3] == <year>          1999
 120        ** $dateParts[4] == <time>          18:54:23 (HH:MM:SS)
 121        ** $dateParts[5] == <from GMT>      +0100
 122        ** $dateParts[6] == <zone>          (EDT)
 123        **
 124        ** NOTE:  In RFC 822, it states that <day of week> is optional.
 125        **        In that case, dateParts[0] would be the <day of month>
 126        **        and everything would be bumped up one.
 127        **/
 128
 129       /* if the first part is a day */
 130       if (eregi("mon|tue|wed|thu|fri|sat|sun", $dateParts[0], $tmp)) {
 131          $dateParts[0] = getDayOfWeek($dateParts[0]);
 132          $dateParts[1] = getDayOfMonth($dateParts[1]);
 133          $dateParts[2] = getMonth($dateParts[2]);
 134          $dateParts[3] = getYear($dateParts[3]);
 135          return "$dateParts[2] $dateParts[1], $dateParts[3]";
 136       }
 137       $dateParts[0] = getDayOfMonth($dateParts[0]);
 138       $dateParts[1] = getMonth($dateParts[1]);
 139       $dateParts[2] = getYear($dateParts[2]);
 140       return "$dateParts[1] $dateParts[0], $dateParts[2]";
 141    }
 142
 143    function getTimeStamp($dateParts) {
 144       if (eregi("mon|tue|wed|thu|fri|sat|sun", $dateParts[0], $tmp)) {
 145          $d[0] = getHour($dateParts[4]);
 146          $d[1] = getMinute($dateParts[4]);
 147          $d[2] = getSecond($dateParts[4]);
 148          $d[3] = getMonthNum($dateParts[2]);
 149          $d[4] = getDayOfMonth($dateParts[1]);
 150          $d[5] = getYear($dateParts[3]);
 151          return mktime($d[0], $d[1], $d[2], $d[3], $d[4], $d[5]);
 152       }
 153       $d[0] = getHour($dateParts[3]);
 154       $d[1] = getMinute($dateParts[3]);
 155       $d[2] = getSecond($dateParts[3]);
 156       $d[3] = getMonthNum($dateParts[1]);
 157       $d[4] = getDayOfMonth($dateParts[0]);
 158       $d[5] = getYear($dateParts[2]);
 159       return mktime($d[0], $d[1], $d[2], $d[3], $d[4], $d[5]);
 160    }
 161 ?>