为什么80%的码农都做不了架构师？>>> 
####代理模式
- 组成
- 抽象角色:通过接口或抽象类生命真实角色实现的业务方法
- 代理角色:实现抽象角色,是真是角色的代理
- 真实角色:实现抽象角色,定义真实角色所要实现的业务逻辑 #####实现Mysql连接类
/*** Created by PhpStorm.* User: gewenrui* Date: 16/3/13* Time: 上午8:16*/
namespace db;
//php允许借口存储常量
interface IConnectInfo{//服务器名称const HOST = "localhost";//用户名const USERNAME = "root";//密码const PASSWORD = "";//数据库名称444444444444444444444const DBNAME ="proxylog";public function doConnect();
}
class UniversalConnect implements IConnectInfo{//实现了作用域解析操作符来访问连接值//静态变量处理速度优势,提供私有可见性提供的封装性private static $server = IConnectInfo::HOST;private static $currentDB = IConnectInfo::DBNAME;private static $username = IConnectInfo::USERNAME;private static $password = IConnectInfo::PASSWORD;private static $hookup;public function doConnect(){//连接数据库self::$hookup = mysqli_connect(self::$server,self::$username,self::$password,self::$currentDB);if(self::$hookup){echo "Successfucl connection to MYSQL"."</br>";}else if(mysqli_connect_error(self::$hookup)){echo "".mysqli_connect_error();}return self::$hookup;}
}
######进行新建表操作
class CreateTable{//设置表名private $tableMaster = "proxyLog";private $hookup;public function __construct(){$this->tableMaster = "proxyLog";$this->hookup = UniversalConnect::doConnect();$drop = "DROP TABLE IF EXITS $this->tableMaster"."</br>";//echo $drop;if($this->hookup->query($drop) == true){printf("Old table %s has been dropped"."</br>",$this->tableMaster);}$sql = "CREATE TABLE $this->tableMaster (uname VARCHAR(15),pw VARCHAR(120))";//echo $sql;if($this->hookup->query($sql) == true){echo "Table{$this->tableMaster} has been created successful";}$this->hookup->close();}
}
######向表中添加数据
class HashRegister{public function __construct(){$this->tableMaster = "proxyLog";$this->hookup = UniversalConnect::doConnect();$username = $this->hookup->real_escape_string(trim($_POST['uname']));$password = $this->hookup->real_escape_string(trim($_POST['pw']));$sql = "INSERT INTO $this->tableMaster(uname,pw) VALUES('$username',md5('$password'))";echo $sql;if($this->hookup->query($sql)){echo "registeration conpleted";}else if($result = $this->hookup->query($sql) == false){printf("Invalid query : %s while query %s");exit();$this->hookup->close();}}
}#####代理模式实现用户登陆
<?php
/*** Created by PhpStorm.* User: gewenrui* Date: 16/3/13* Time: 上午10:35*/
include "demo26.php";interface ISubject{function request();
}
//生成一个客户端接受用户post的数据
//实现登陆代理
class Client{private $proxy;private $un;private $pw;public function __construct(){$this->tableMaster = "proxyLog";$this->hookup = \db\UniversalConnect::doConnect();$this->un = $this->hookup->real_escape_string(trim($_POST['uname']));$this->pw = $this->hookup->real_escape_string(trim($_POST['pw']));//代理模式$this->getIface($this->proxy = new Proxy());}public function getIface(ISubject $proxy){$proxy->login($this->un,$this->pw);}
}//代理类
class Proxy implements ISubject{private $tableMaster;private $hookup;private $logGood;private $realSubject;public function login($uNow,$pwNow){$uname = $uNow;$pw = md5($pwNow);$this->logGood = false;$this->tableMaster = "proxyLog";$this->hookup = \db\UniversalConnect::doConnect();$sql = "SELECT pw from $this->tableMaster WHERE uname = '$uname'";if($result = $this->hookup->query($sql)){$row = $result->fetch_array(MYSQLI_ASSOC);echo $pw;if($row['pw'] == $pw){$this->logGood = true;}$result->close();}else if(($result = $this->hookup->query($sql)===false)){printf("failed %s",$this->hookup->error);exit();}$this->hookup->close();if($this->logGood){//执行request方法$this->request();}else{echo "username and/or password not on record";}}public function request(){$this->realSubject = new RealSubject();$this->realSubject ->request();}
}class RealSubject implements ISubject{public function request(){$practice = <<<REQUEST<html><head><body><head> data </head><body>1. fuck u silly b</body></html>
REQUEST;
echo $practice;}
}
$data = new Client();
