10.10 类，对象调用

<?php
   class Site{
         /*成员变量*/ 
          
          var $title;
      
      /*成员函数*/ 
       function setTitle($par){
           
            $this->title = $par;     
       }    
           
       function getTitle(){
           
            echo $this->title.PHP_EOL;    
       }
       
           
   }
       
    $w3c = new Site;
    $taobao = new Site;
    $Google = new Site;
       // 调用成员函数，设置标题
       $w3c->setTitle('W3Cschool教程');
       $taobao->setTitle('淘宝');
       $Google->setTitle('Google');
       // 调用成员函数，获取标题
       $w3c->getTitle();
       $taobao->getTitle();
       $Google->getTitle();