note 62402 added to function.mktime
| From: | ajaypal at NOSPAM dot ajaypal dot com | Date: | Mon, 27 Feb 2006 21:51:50 +0000 |
| Subject: | note 62402 added to function.mktime | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-104515@lists.php.net to get a copy of this message | ||
<?php
/** Finds and Returns the timestamp of Given WeekDay just before a given date (as timestamp)
Arguments:
$weekdaytofind
defaults to monday: 0->sun, 1->mon,2->tue etc...
weekday for which you are looking for
$givenDateTimestamp
date before which you want the weekday date
*/
function getTimestampOfPrevWeekDayFromGivenDate($weekdaytofind = 1, $givenDateTimestamp = 0)
{
if(!$givenDateTimestamp)
{
//Build Today
$tmonth=date('n');
$tday=date('d');
$tyear=date('Y');
}
else
{
$tmonth=date('n', $givenDateTimestamp);
$tday=date('d', $givenDateTimestamp);
$tyear=date('Y', $givenDateTimestamp);
}
//convert it to unix timestamp, just in case it may be invalid
$ts = mktime(0, 0, 0,$tmonth,$tday,$tyear);
for($weekday=date("w", $ts); $weekday != $weekdaytofind; $weekday=date("w",
$ts))
{
//easy way to adjust
$tmonth=date('n', $ts);
$tday=date('d', $ts);
$tyear=date('Y', $ts);
//convert it to unix timestamp
$ts = mktime(0, 0, 0, $tmonth, $tday-1, $tyear);
}
return $ts;
}
?>
Feel free to optimise
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Manual Page -- http://www.php.net/manual/en/function.mktime.php
Edit -- http://master.php.net/note/edit/62402
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Del: useless -- http://master.php.net/note/delete/62402/useless
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Del: non-english -- http://master.php.net/note/delete/62402/non-english
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Del: other reasons-- http://master.php.net/note/delete/62402
Reject -- http://master.php.net/note/reject/62402
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