date_diff php workaround

gistfile1.aw

/*
* DateTime::diff on PHP has a bug on Windows systems where it always outputs 6015. Here's a workaround]
* that i found on http://acme-tech.net/blog/2010/10/12/php-datetimediff-returns-6015/
*/

function dateDiff($dt1, $dt2, $timeZone = 'GMT') {
    $tZone = new DateTimeZone($timeZone);
    $dt1 = new DateTime($dt1, $tZone);
    $dt2 = new DateTime($dt2, $tZone);
    $ts1 = $dt1->format('Y-m-d');
    $ts2 = $dt2->format('Y-m-d');
    $diff = abs(strtotime($ts1)-strtotime($ts2));
    $diff/= 3600*24;
    return $diff;
}