PHP设计模式之简单投诉页面实例

本文实例介绍了PHP简单投诉页面的实现代码，分享给大家供大家参考，具体内容如下

php代码：

    <?php

    /*
     * 设计模式练习
     * 1.数据库连接类（单例模式）
     * 2.调用接口实现留言本功能（工厂模式）
     * 3.实现分级举报处理功能（责任链模式）
     * 4.发送不同组合的举报信息（桥接模式）
     * 5.发送不同格式的举报信息（适配器模式）
     * 6.在投诉内容后自动追加时间（装饰器模式）
     * 7.根据会员登录信息变换显示风格（观察者模式）
     * 8.根据发帖长度加经验值（策略模式）
     */

    interface DB {

      function conn();
    }

    /**
     * 单例模式
     */
    class MysqlSingle implements DB {

      protected static $_instance = NULL;

      public static function getInstance() {
        if (!self::$_instance instanceof self) {
          self::$_instance = new self;
        }
        return self::$_instance;
      }

      final protected function __construct() {
        echo 'Mysql单例创建成功<br>';
      }

      final protected function __clone() {
        return false;
      }

      public function conn() {
        echo 'Mysql连接成功<br>';
      }

    }

    /**
     * 工厂模式
     */
    interface Factory {

      function createDB();
    }

    class MysqlFactory implements Factory {

      public function createDB() {
        echo 'Mysql工厂创建成功<br>';
        return MysqlSingle::getInstance();
      }

    }

    /**
     * 根据用户名显示不同风格
     * 观察者模式
     */
    class Observer implements SplSubject {

      protected $_observers = NULL;
      public $_style = NULL;

      public function __construct($style) {
        $this->_style = $style;
        $this->_observers = new SplObjectStorage();
      }

      public function show() {
        $this->notify();
      }

      public function attach(SplObserver $observer) {
        $this->_observers->attach($observer);
      }

      public function detach(SplObserver $observer) {
        $this->_observers->detach($observer);
      }

      public function notify() {
        $this->_observers->rewind();
        while ($this->_observers->valid()) {
          $observer = $this->_observers->current();
          $observer->update($this);
          $this->_observers->next();
        }
      }

    }

    class StyleA implements SplObserver {

      public function update(SplSubject $subject) {
        echo $subject->_style . ' 模块A<br>';
      }

    }

    class StyleB implements SplObserver {

      public function update(SplSubject $subject) {
        echo $subject->_style . ' 模块B<br>';
      }

    }

    /**
     * 根据不同方式进行投诉
     * 桥接模式
     */
    class Bridge {

      protected $_obj = NULL;

      public function __construct($obj) {
        $this->_obj = $obj;
      }

      public function msg($type) {

      }

      public function show() {
        $this->msg();
        $this->_obj->msg();
      }

    }

    class BridgeEmail extends Bridge {

      public function msg() {
        echo 'Email>>';
      }

    }

    class BridgeSms extends Bridge {

      public function msg() {
        echo 'Sms>>';
      }

    }

    class Normal {

      public function msg() {
        echo 'Normal<br>';
      }

    }

    class Danger {

      public function msg() {
        echo 'Danger<br>';
      }

    }

    /**
     * 适配器模式
     */
    class Serialize {

      public $content = NULL;

      public function __construct($content) {
        $this->content = serialize($content);
      }

      public function show() {
        return '序列化格式：<br>' . $this->content;
      }

    }

    class JsonAdapter extends Serialize {

      public function __construct($content) {
        parent::__construct($content);
        $tmp = unserialize($this->content);
        $this->content = json_encode($tmp, TRUE);
      }

      public function show() {
        return 'Json格式：<br>' . $this->content;
      }

    }

    /**
     * 在投诉内容后自动追加
     * 装饰器模式
     */
    class Base {

      protected $_content = NULL;

      public function __construct($content) {
        $this->_content = $content;
      }

      public function getContent() {
        return $this->_content;
      }

    }

    class Decorator {

      private $_base = NULL;

      public function __construct(Base $base) {
        $this->_base = $base;
      }

      public function show() {
        return $this->_base->getContent() . '>>系统时间：' . date('Y-m-d H:i:s', time());
      }

    }

    /**
     * 分级举报处理功能
     * 责任链模式
     */
    class level1 {

      protected $_level = 1;
      protected $_top = 'Level2';

      public function deal($level) {
        if ($level <= $this->_level) {
          echo '处理级别：1<br>';
          return;
        }
        $top = new $this->_top;
        $top->deal($level);
      }

    }

    class level2 {

      protected $_level = 2;
      protected $_top = 'Level3';

      public function deal($level) {
        if ($level <= $this->_level) {
          echo '处理级别：2<br>';
          return;
        }
        $top = new $this->_top;
        $top->deal($level);
      }

    }

    class level3 {

      protected $_level = 3;
      protected $_top = 'Level2';

      public function deal($level) {
        echo '处理级别：3<br>';
        return;
      }

    }

    if (!empty($_POST)) {
      echo '<h1>PHP设计模式</h1>';
      //连接数据库――工厂+单例模式
      $mysqlFactory = new MysqlFactory();
      $single = $mysqlFactory->createDB();
      $single->conn();
      echo '<br>';
      //观察者模式
      $username = $_POST['username'];
      $ob = new Observer($username);
      $a = new StyleA();
      $ob->attach($a);
      $b = new StyleB();
      $ob->attach($b);
      $ob->show();
      echo '<br>';
      $ob->detach($b);
      $ob->show();
      echo '<br>';
      //桥接模式
      $typeM = $_POST['typeM'];
      $typeN = 'Bridge' . $_POST['typeN'];
      $obj = new $typeN(new $typeM);
      $obj->show();
      echo '<br>';
      //适配器模式
      $post = $_POST;
      $obj = new Serialize($post);
      echo $obj->show();
      echo '<br>';
      $json = new JsonAdapter($post);
      echo $json->show();
      echo '<br>';
      echo '<br>';
      //装饰器模式
      $content = $_POST['content'];
      $decorator = new Decorator(new Base($content));
      echo $decorator->show();
      echo '<br>';
      //责任链模式
      echo '<br>';
      $level = $_POST['level'];
      $deal = new Level1();
      $deal->deal(intval($level));
      return;
    }
    require("0.html");

html代码：

    <!DOCTYPE html>
    <!--
    To change this license header, choose License Headers in Project Properties.
    To change this template file, choose Tools | Templates
    and open the template in the editor.
    -->
    <html>
      <head>
        <title>PHP设计模式</title>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <style>
          div{border:solid gray 1px;margin-top:10px;height: 100px;width: 200px;}
        </style>
      </head>
      <body>
        <form action="0.php" method="post">
          <h1>用户名</h1>
          <select id="username" name="username">
            <option value="Tom">Tom</option>
            <option value="Lily">Lily</option>
          </select>
          <h1>投诉方式</h1>
          <select id="type" name="typeM">
            <option value="Normal">Normal</option>
            <option value="Danger">Danger</option>
          </select>
          <select id="type" name="typeN">
            <option value="Email">Email</option>
            <option value="Sms">Sms</option>
          </select>
          <h1>处理级别</h1>
          <select id="level" name="level">
            <option value="1">1</option>
            <option value="2">2</option>
            <option value="3">3</option>
          </select>
          <h1>投诉内容</h1>
          <textarea id="content" name="content" rows="3"></textarea>
          <button type="submit">提交</button>
        </form>
      </body>
    </html>

以上就是本文的全部内容，希望对大家的学习有所帮助。