本文實例介紹了PHP簡單投訴頁面的實現代碼，分享給大家供大家參考，具體內容如下
php代碼：
<?php
/*
* 設計模式練習
* 1.數據庫連接類（單例模式）
* 2.調用接口實現留言本功能（工廠模式）
* 3.實現分級舉報處理功能（責任鏈模式）
* 4.發送不同組合的舉報信息（橋接模式）
* 5.發送不同格式的舉報信息（適配器模式）
* 6.在投訴內容後自動追加時間（裝飾器模式）
* 7.根據會員登錄信息變換顯示風格（觀察者模式）
* 8.根據發帖長度加經驗值（策略模式）
*/
interface DB {
function conn();
}
/**
* 單例模式
*/
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單例創建成功<br>';
}
final protected function __clone() {
return false;
}
public function conn() {
echo 'Mysql連接成功<br>';
}
}
/**
* 工廠模式
*/
interface Factory {
function createDB();
}
class MysqlFactory implements Factory {
public function createDB() {
echo 'Mysql工廠創建成功<br>';
return MysqlSingle::getInstance();
}
}
/**
* 根據用戶名顯示不同風格
* 觀察者模式
*/
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 . ' 模塊A<br>';
}
}
class StyleB implements SplObserver {
public function update(SplSubject $subject) {
echo $subject->_style . ' 模塊B<br>';
}
}
/**
* 根據不同方式進行投訴
* 橋接模式
*/
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>';
}
}
/**
* 適配器模式
*/
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;
}
}
/**
* 在投訴內容後自動追加
* 裝飾器模式
*/
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() . '>>系統時間：' . date('Y-m-d H:i:s', time());
}
}
/**
* 分級舉報處理功能
* 責任鏈模式
*/
class level1 {
protected $_level = 1;
protected $_top = 'Level2';
public function deal($level) {
if ($level <= $this->_level) {
echo '處理級別：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 '處理級別：2<br>';
return;
}
$top = new $this->_top;
$top->deal($level);
}
}
class level3 {
protected $_level = 3;
protected $_top = 'Level2';
public function deal($level) {
echo '處理級別：3<br>';
return;
}
}
if (!empty($_POST)) {
echo '<h1>PHP設計模式</h1>';
//連接數據庫——工廠+單例模式
$mysqlFactory = new MysqlFactory();
$single = $mysqlFactory->createDB();
$single->conn();
echo '<br>';
//觀察者模式
$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>';
//橋接模式
$typeM = $_POST['typeM'];
$typeN = 'Bridge' . $_POST['typeN'];
$obj = new $typeN(new $typeM);
$obj->show();
echo '<br>';
//適配器模式
$post = $_POST;
$obj = new Serialize($post);
echo $obj->show();
echo '<br>';
$json = new JsonAdapter($post);
echo $json->show();
echo '<br>';
echo '<br>';
//裝飾器模式
$content = $_POST['content'];
$decorator = new Decorator(new Base($content));
echo $decorator->show();
echo '<br>';
//責任鏈模式
echo '<br>';
$level = $_POST['level'];
$deal = new Level1();
$deal->deal(intval($level));
return;
}
require("0.html");
html代碼：
<!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設計模式</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>用戶名</h1>
<select id="username" name="username">
<option value="Tom">Tom</option>
<option value="Lily">Lily</option>
</select>
<h1>投訴方式</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>處理級別</h1>
<select id="level" name="level">
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
</select>
<h1>投訴內容</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內容，希望對大家的學習有所幫助。
