php返回相对时间（如：20分钟前，3天前）的方法
本文实例讲述了php返回相对时间（如：20分钟前，3天前）的方法。分享给大家供大家参考。具体如下：
functionplural($num){
if($num!=1)
return"s";
}
functiongetRelativeTime($date){
$diff=time()-strtotime($date);
if($diff<60)
return$diff."秒".plural($diff)."前";
$diff=round($diff/60);
if($diff<60)
return$diff."分钟".plural($diff)."前";
$diff=round($diff/60);
if($diff<24)
return$diff."小时".plural($diff)."前";
$diff=round($diff/24);
if($diff<7)
return$diff."天".plural($diff)."前";
$diff=round($diff/7);
if($diff<4)
return$diff."星期".plural($diff)."前";
return"on".date("Fj,Y",strtotime($date));
}
希望本文所述对大家的php程序设计有所帮助。