一个计算剩余时间的php自定义函数

publicfunction gettime($time_s,$time_n){

$time_s= strtotime($time_s);

$time_n= strtotime($time_n);

$strtime= '';

$time= $time_n-$time_s;

if($time>= 86400){

return$strtime = date('Y-m-d H:i:s',$time_s);

}

if($time>= 3600){

$strtime.= intval($time/3600).'小时';

$time= $time% 3600;

}else{

$strtime.= '';

}

if($time>= 60){

$strtime.= intval($time/60).'分钟';

$time= $time% 60;

}else{

$strtime.= '';

}

if($time> 0){

$strtime.= intval($time).'秒前';

}else{

$strtime= "时间错误";

}

return$strtime;

}