标签：ret pre obj function turn UNC func else col
<?php //app class Stu { private $n = ‘小红‘; public function __isset($n) { return isset($this->$n); } } $obj = new Stu(); if(isset($obj->n)) { echo ‘有值‘; }else{ echo ‘无值‘; }
标签：ret pre obj function turn UNC func else col
原文地址：https://www.cnblogs.com/xm666/p/11290612.html
