php计算两个时间差并返回差多少天、时、分、秒

function timediff($begin_time,$end_time)
{
if($begin_time < $end_time){ $starttime = $begin_time; $endtime = $end_time; } else{ $starttime = $end_time; $endtime = $begin_time; } $timediff = $endtime-$starttime; $days = intval($timediff/86400); $remain = $timediff%86400; $hours = intval($remain/3600); $remain = $remain%3600; $mins = intval($remain/60); $secs = $remain%60; $res = array("day" => $days,”hour” => $hours,”min” => $mins,”sec” => $secs);
return $res;
}