default.php:
<?phpnamespace SiteInfo{ ??class Site{ ???????var $url; ???????var $title; ???????????????function setUrl($par){ ???????????$this->url=$par; ???????} ???????????????function getUrl(){ ???????????echo $this->url.PHP_EOL; ???????} ???????????????function setTitle($par){ ???????????$this->title=$par; ???????} ???????????????function getTitle(){ ???????????echo $this->title.PHP_EOL; ???????} ???}}?>index.php:
<?php namespace DoSomething{ ????require (‘default.php‘);//require只是引用一次，报错后就中终断执行，include是每次加载都执行，报错后只是提示，后续程序继续执行 ????use SiteInfo\Site;//引用命名空间\类名 ????class myClass{ ????????function getSite(){ ????????????$taobao=new Site();//实例化方法，这些实例化只能写到类的方法里面不能再类里面实例化 ????????????$taobao->setUrl(‘hello word~~!!!!!!!@!!!!@#$%YUI‘); ????????????$result = $taobao->getUrl(); ????????????echo $result; ????????} ????} ????$myClass = new myClass(); ????$myClass->getSite();//类方法调用 }?>php一个类引用另一个类的方法的写法
原文地址：https://www.cnblogs.com/llcdbk/p/9914856.html