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【PHP】 interface妙用

作者:Strutsz / 发布于2014/12/30/ 477


	/*
	*user类
	*/
	class user{
	 private $id;
	 private $username;
	 private $password;
	 public function setId($id){
	 $this->id=$id;
	 }
	 public function getId(){
	 return $this->id;
	 }
	 public function setUsername($username){
	 $this->username=$username;
	 }
	 public function getUsername(){
	 return $this->username;
	 }
	 public function setPassword($password){
	 $this->password=$password;
	 }
	 public function getPassword(){
	 return $this->password;
	 }
	}
	2. [代码]user_interface.php
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	/**
	*登陆接口
	*/
	interface Userface{
	 public function login($u);
	}
	3. [代码]userdaophp
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	/*
	*实现登陆接口
	*/
	require "user_interface.php";
	class User implements Userface{
	 public function login($u){
	 $sql="select count(*) from user where username=".$u->getUsername."and password =".$u->Password;
	 return $db->execute($sql);//执行查询当返回为0说明用户登陆错误
	
	 }
	 //下面可以通过接口写添加删除修改等功能
	}

	

	

	

	/*
	*工厂模式
	*/
	require "userdao.php";
	class factory{
	 public static function getUserObject(){
	 return new User();
	 }
	}

	

	

	

	require "user.php";
	require "factory.php"
	$user =new user();
	$fac=factory::getUserObject();
	$user->setUsername($_REQUEST['username']);//要传入的用户名
	$user->setPassword($_REQUEST['Pwd']);
	if($fac->login($user)){ //调用接口类把user对象传过去在接口中调用
	 echo "登陆成功";
	}

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