时间格式化

时间格式化

//格式化时间
function format_date($beforetime)
{
	$time= time() - $beforetime;	
	$today=strtotime(date("M-d-y",mktime(0,0,0,date("m"),date("d"),date("Y"))));
	if($time =60 && $time$today){
			$return="今天 ".date("H:i",$beforetime);	
		}elseif($beforetime($today-86400)){
			$return="昨天 ".date("H:i",$beforetime);	
		}else{
			$return=date("Y-m-d H:i",$beforetime);	
		}
	}
	return $return;
}