【PHP构造方法和析构方法的使用】

构造方法：__construct，析构方法：__destruct

代码示例：

 1 <?php
 2     class Person
 3     {
 4         public $name;
 5         public $age;
 6         public function __construct($name,$age)
 7         {
 8             $this->name=$name;
 9             $this->age=$age;
10         }
11         public function showInformation()
12         {
13             echo "<br/>姓名：".$this->name;
14             echo "<br/>年龄：".$this->age;
15         }
16         public function __destruct()
17         {
18             echo "<br/>释放资源".$this->name;
19         }
20     }
21     $zhangsan=new Person("张三",12);
22     //$temp=$zhangsan;
23     $zhangsan=null;
24     $lisi=new Person("李四",13);
25     $wangwu=new Person("王五",14);
26 ?>