获取两个日期的时间差（天数、时、分、秒）

其实这个时间在MySQL中处理，但是本着尽量避免逻辑在数据库中处理的原则，还是在程序断处理更佳，减少数据库的压力，大负载也是这种思想。

获取两个日期的时间差（天数、时、分、秒）
function timeDiff( $beginTime, $endTime )
{
    if ( $beginTime < $endTime ) {
        $starttime = $beginTime;
        $endtime = $endTime;
    } else {
        $starttime = $endTime;
        $endtime = $beginTime;
    }
    $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( "dayNum" => $days, "hourNum" => $hours, "minNum" => $mins, "secNum" => $secs );
    return $res;
} 

$timediff = timeDiff( strtotime( "2014-08-30 00:00:00" ), strtotime( "2014-09-11 18:18:41" ) );
print_r( $timediff );