兩個時間相差多少分鐘

//兩個時間戳相差分鐘數
function timediff($begin_time,$end_time,$type)
{
    if($begin_time < $end_time){
        $starttime = $begin_time;
        $endtime = $end_time;
    }else{
        $starttime = $end_time;
        $endtime = $begin_time;
    }

    //計算天數
    $timediff = $endtime-$starttime;
    $days = intval($timediff/86400);
    //計算小時數
    $remain = $timediff%86400;
    $hours = intval($remain/3600);
    if($type == 'm'){
        //計算分鐘數
        $remain = $remain%3600;
        $res = intval($remain/60);
    }
    if($type == 's'){
        $remain = $remain%3600;
        $mins = intval($remain/60);
        //計算秒數
        $secs = $remain%60;
        $res = array("day" => $days,"hour" => $hours,"min" => $mins,"sec" => $secs);
    }

    return $res;
}