note 115346 deleted from function.date-diff by salathe
| From: | salathe@php.net | Date: | Tue, 08 Jul 2014 13:00:13 +0000 |
| Subject: | note 115346 deleted from function.date-diff by salathe | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-199898@lists.php.net to get a copy of this message | ||
Note Submitter: cemal dot gultekin at gmail dot com
----
Easy to use function slightly changed from Sergio Abreu's function with backwards compatibility
(PHP < 5.3.0)
<?php
/**
* mathematical decimal difference between two informed dates
* Features:
* Automatic conversion on dates informed as string.
* Possibility of absolute values (always +) or relative (-/+)
*
* @param char $str_interval y=year, m=month, d=day, h=hour, i=minute, s=second
* @param DateTime/string $dt_earlier first timestamp
* @param DateTime/string $dt_later second timestamp
* @param bool $relative if set to true, function will always return a positive value regardless
of the order of time of timestamps
* @returns float signed or unsigned depending on $relative
*/
function s_datediff( $str_interval, $dt_earlier, $dt_later, $relative=false){
if (function_exists('date_create')) {
if( is_string( $dt_earlier)) $dt_earlier = date_create( $dt_earlier);
if( is_string( $dt_later)) $dt_later = date_create( $dt_later);
$diff = date_diff( $dt_earlier, $dt_later, ! $relative);
} else {
if( is_string( $dt_earlier)) $uts_earlier = strtotime($dt_earlier);
if( is_string( $dt_later)) $uts_later = strtotime( $dt_later);
$diff = new stdClass();
$diff->y = date('Y',$uts_later) - date('Y',$uts_earlier);
$diff->m = date('m',$uts_later) - date('m',$uts_earlier);
$diff->d = date('d',$uts_later) - date('d',$uts_earlier);
$diff->h = date('H',$uts_later) - date('H',$uts_earlier);
$diff->i = date('i',$uts_later) - date('i',$uts_earlier);
$diff->s = date('s',$uts_later) - date('s',$uts_earlier);
$diff->invert = ($uts_later > $uts_earlier);
}
switch( $str_interval){
case "y":
$total = $diff->y + $diff->m / 12 + $diff->d / 365.25; break;
case "m":
$total= $diff->y * 12 + $diff->m + $diff->d/30 + $diff->h / 24;
break;
case "d":
$total = $diff->y * 365.25 + $diff->m * 30 + $diff->d + $diff->h/24 +
$diff->i / 60;
break;
case "h":
$total = ($diff->y * 365.25 + $diff->m * 30 + $diff->d) * 24 + $diff->h +
$diff->i/60;
break;
case "i":
$total = (($diff->y * 365.25 + $diff->m * 30 + $diff->d) * 24 + $diff->h)
* 60 + $diff->i + $diff->s/60;
break;
case "s":
$total = ((($diff->y * 365.25 + $diff->m * 30 + $diff->d) * 24 +
$diff->h) * 60 + $diff->i)*60 + $diff->s;
break;
}
if( $diff->invert) return -1 * $total;
else return $total;
}
$earlier = '2013-06-07 11:30:00';
$later = '2012-07-08 12:30:00';
$diffl = 'm';
echo '<br><br><br> diff of '.$later.' and '.$earlier.'
is '. s_datediff($diffl,$earlier, $later,true) .' in '.$diffl.'<br>';
//output
//diff of 2012-07-08 12:30:00 and 2013-06-07 11:30:00 is -11.925 in m
echo '<br><br><br> diff of '.$later.' and '.$earlier.'
is '. s_datediff($diffl,$earlier, $later,false) .' in '.$diffl;
//output
//diff of 2012-07-08 12:30:00 and 2013-06-07 11:30:00 is 11.925 in m
?>