PHP設計模式-適配器模式

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<?php
//適配器模式
//將不同的函數封裝成統一的api
//例如 將mysql pdo mysqli 一致

//介面
interface DataBase
{
    function connect($host, $user, $password, $dbname);
}

class Mysql implements DataBase
{
    public function connect($host, $user, $password, $dbname)
    {
        echo __CLASS__.‘ connect‘;
    }
}

class MysqlPdo
{
    public function connect($host, $user, $password, $dbname)
    {
        echo __CLASS__.‘ connect‘;
    }

}

class MysqlMysqli
{
    public function connect($host, $user, $password, $dbname)
    {
        echo __CLASS__.‘ connect‘;
    }
}

$db = new Mysql();
$db->connect();
$db = new MysqlPdo();
$db->connect();
$db = new MysqlMysqli();
$db->connect();

PHP設計模式-適配器模式