如何在PHP中定义一个类

class Name extends Another Class {    Access Variable Declaration    Access Function Declaration } 

<?php //定义一个跟踪用户的类    class User    {        //属性        public $name;        private $password, $lastLogin;        //方法        public function __construct($name, $password)        {            $this->name = $name;            $this->password = $password;            $this->lastLogin = time();            $this->accesses++;        }        // 获取最后访问的时间        function getLastLogin()        {            return(date("M d Y", $this->lastLogin));        }    }    //创建一个对象的实例    $user = new User("Leon", "sdf123");    //获取最后访问的时间    print($user->getLastLogin() ."<br>n");    //打印用户名    print("$user->name<br>n"); ?> 

＜?php    //组件    class Widget    {        public $name='none';        public $created=FALSE;    }    //装配器    class Assembler    {        public function make(Widget $w)        {            print("Making $w->name<br>n");            $w->created=TRUE;        }    }    //建立一个组件对象    $thing = new Widget;    $thing->name = 'Gadget';    //装配组件    Assembler::make($thing); ?＞