设计模式PHP篇（三）————适配器模式

简单的适配器模式：

interface Adaptor
{
	public function read();
	public function write();
}

class File implements Adaptor
{
	public function write()
	{
		echo "file write" . PHP_EOL;
	}

	public function read()
	{
		echo "file read" . PHP_EOL;
	}
}

class DB implements Adaptor
{
	public function write()
	{
		echo "db write" . PHP_EOL;
	}

	public function read()
	{
		echo "db read" . PHP_EOL;
	}
}


class Client
{
	public function call($obj)
	{
		$obj->read();
		$obj->write();
	}
}

$client = new Client();
$client->call(new File());
$client->call(new DB());