php 序列化与反序列化

 <?php
 //声明一个类
 class dog {

     var $name;
     var $age;
     var $owner;

     function dog($in_name="unnamed",$in_age="",$in_owner="unknown") {
         $this->name = $in_name;
         $this->age = $in_age;
         $this->owner = $in_owner;
     }

     function getage() {
         return ($this->age * );
     }

     function getowner() {
         return ($this->owner);
     }

     function getname() {
         return ($this->name);
     }
 }
 //实例化这个类
 $ourfirstdog = new dog("Rover",,"Lisa and Graham");
 //用serialize函数将这个实例转化为一个序列化的字符串
 $dogdisc = serialize($ourfirstdog);
 print $dogdisc; //$ourfirstdog 已经序列化为字符串 O:3:"dog":3:{s:4:"name";s:5:"Rover";s:3:"age";i:12;s:5:"owner";s:15:"Lisa and Graham";}

 ?>