php计算时间差/两个时隔日期相隔的天数,时,分,秒

php计算时间差/两个时间日期相隔的天数,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;?
}?
//========?实例使用 ========?
$timediff?=?timediff(?strtotime(?"2011-10-28"?),?strtotime(?"2011-10-29"?)?);?
print_r(?$timediff?);?
?>