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';
}
final protected function __clone() {
return false;
}
public function conn() {
echo 'Mysql连接成功
';
}
}
/**
* 工厂模式
*/
interface Factory {
function createDB();
}
class MysqlFactory implements Factory {
public function createDB() {
echo 'Mysql工厂创建成功
';
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
';
}
}
class StyleB implements SplObserver {
public function update(SplSubject $subject) {
echo $subject->_style . ' 模块B
';
}
}
/**
* 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
';
}
}
class Danger {
public function msg() {
echo 'Danger
';
}
}
/**
* 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：
' . $this->content;
}
}
class JsonAdapter extends Serialize {
public function __construct($content) {
parent::__construct($content);
$tmp = unserialize($this->content);
$this->content = json_encode($tmp, TRUE);
}
public function show() {
return 'Json格式：
' . $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
';
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
';
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
';
return;
}
}
if (!empty($_POST)) {
echo '
PHP设计模式
';
//连接数据库——工厂+单例模式
$mysqlFactory = new MysqlFactory();
$single = $mysqlFactory->createDB();
$single->conn();
echo '';
//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 '
';
$ob->detach($b);
$ob->show();
echo '
';
//桥接模式
$typeM = $_POST['typeM'];
$typeN = 'Bridge' . $_POST['typeN'];
$obj = new $typeN(new $typeM);
$obj->show();
echo '
';
//适配器模式
$post = $_POST;
$obj = new Serialize($post);
echo $obj->show();
echo '
';
$json = new JsonAdapter($post);
echo $json->show();
echo '
';
echo '
';
//装饰器模式
$content = $_POST['content'];
$decorator = new Decorator(new Base($content));
echo $decorator->show();
echo '
';
//责任链模式
echo '
';
$level = $_POST['level'];
$deal = new Level1();
$deal->deal(intval($level));
return;
}
require("0.html");
html代码：
PHP设计模式
以上就是本文的全部内容，希望对大家的学习有所帮助。
