第五章 使用OOP注册会员
index.php
<?php ob_start();?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>会员系统</title>
<link rel="stylesheet" type="text/css" href="style.css" />
</head>
<body>
<?php
function __autoload($_className) {
require $_className . '.class.php';
}
// 实例化主类
if (isset ( $_GET ['index'] )) {
$_main = new Main ( $_GET ['index'] );
} else {
$_main = new Main ();
}
// 运行
$_main->_run ();
?>
</body>
</html>Login.class.php
<?php
// 登录类
class Login extends User {
// 写一个构造方法来接收表单的值
public function __construct($_userName, $_passWord) {
$this->_username = $_userName;
$this->_password = $_passWord;
}
// 从xml里读出信息
public function _query() {
// 载入xml文件
$_sxe = simplexml_load_file ( 'user.xml' );
if ($this->_username == $_sxe->username && $this->_password == $_sxe->password) {
// 生成一个cookies
setcookie ( 'user', $this->_username );
Tool::_alertLocation ( $this->_username . '，欢迎您回来！', '?index=member' );
} else {
Tool::_alertBack ( '登录失败！' );
}
}
public function _check() {
if (empty ( $this->_username ) || empty ( $this->_password )) {
return false;
}
return true;
}
}
?>login.inc.php
<h3>请登录您的账号</h3> <div class="login"> <form method="post" action=""> <p>用 户 名：<input type="text" name="username" /></p> <p>密 码：<input type="password" name="password" /></p> <p><input type="submit" name="send" value="登录" /></p> <p>[<a href="?">返回上一层</a>]</p> </form> </div>
Main.class.php
<?php
// 主类，控制界面载入，处理数据
class Main {
private $_index;
private $_send;
// 构造方法，用来初始化数据
public function __construct($_index = '') {
$this->_index = $_index;
if (isset ( $_POST ['send'] )) {
$this->_send = $_POST ['send'];
}
}
// 总管
public function _run() {
// 处理数据
$this->_send ();
// 载入界面
include $this->_ui ();
}
// 创建一个载入界面的方法
// 这个方法，我想得到login.inc.php这个字符串
private function _ui() {
if (empty ( $this->_index ) || ! file_exists ( $this->_index . '.inc.php' )) {
$this->_index = 'start';
}
return $this->_index . '.inc.php';
}
// 创建一个方法来接收登录和注册发送的操作
private function _send() {
switch ($this->_send) {
case '注册' :
$this->_exec ( new Reg ( $_POST ['username'], $_POST ['password'], $_POST ['notpassword'], $_POST ['email'] ) );
break;
case '登录' :
$this->_exec ( new Login ( $_POST ['username'], $_POST ['password'] ) );
break;
}
}
// 创建一个执行的方法，里面传一个参数，是Reg或者Login类的对象引用
private function _exec($_class) {
if ($_class->_check ()) {
$_class->_query ();
} else {
Tool::_alertBack ( '字段不能为空！' );
}
}
}
?>member.inc.php
<h3>欢迎您回来</h3> <div class="start"> <p>欢迎您的归来，[<?php echo $_COOKIE['user']?>]</p> </div>
Reg.class.php
<?php
// 注册类
class Reg extends User {
// 写一个构造方法来接收表单的值
public function __construct($_userName, $_passWord, $_notPassWord, $_eMail) {
$this->_username = $_userName;
$this->_password = $_passWord;
$this->_notpassword = $_notPassWord;
$this->_email = $_eMail;
}
// 将信息注册到xml里
public function _query() {
// xml字符串
$_xml = <<<_xml
<?xml version="1.0" encoding="utf-8"?>
<user>
<username>$this->_username</username>
<password>$this->_password</password>
<email>$this->_email</email>
</user>
_xml;
// 创建simplexml类
$_sxe = new SimpleXMLElement ( $_xml );
// 生成xml
$_sxe->asXML ( 'user.xml' );
// 跳转到login.inc.php页面
Tool::_alertLocation ( '恭喜你，注册成功！', '?index=login' );
}
// 给注册做验证
public function _check() {
if (empty ( $this->_username ) || empty ( $this->_password ) || empty ( $this->_notpassword ) || empty ( $this->_email )) {
return false;
}
return true;
}
}
?>reg.inc.php
<h3>请注册您的个人信息</h3> <div class="reg"> <form method="post" action=""> <p>用 户 名：<input type="text" name="username" /></p> <p>密 码：<input type="password" name="password" /></p> <p>密码确认：<input type="password" name="notpassword" /></p> <p>电子邮件：<input type="text" name="email" /></p> <p><input type="submit" name="send" value="注册" /></p> <p>[<a href="?">返回上一层</a>]</p> </form> </div>
start.inc.php
<h3>欢迎光临onestopweb博客</h3> <div class="start"> <a href="index.php?index=login">登录</a> | <a href="index.php?index=reg">注册</a> </div>
Tool.class.php
<?php
// 辅助工具类，里面存放的都是静态方法，直接调用，无需实例化
final class Tool {
// 弹出一个信息，然后跳转到指定的页面
static public function _alertLocation($_info, $_url) {
echo "<script type=\"text/javascript\">alert('$_info');location.href='$_url';</script>";
exit ();
}
// 弹窗返回之前
static public function _alertBack($_info) {
echo "<script type=\"text/javascript\">alert('$_info');history.back();</script>";
exit ();
}
}
?>User.class.php
<?php
// 这个用户类，规范子类的字段和方法
abstract class User {
// 成员字段
protected $_username;
protected $_password;
protected $_notpassword;
protected $_email;
// 一个方法，登录和注册
// 如果你点了登录，就执行这个方法登录
// 如果你点了注册，就执行这个方法注册
abstract function _query();
// 验证
abstract function _check();
}
?>user.xml
<?xml version="1.0" encoding="utf-8"?> <user> <username>onestopweb</username> <password>123456</password> <email>[email protected]</email> </user>
效果图：
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