在PHP中,要實(shí)現(xiàn)高效的封裝,可以通過(guò)以下幾個(gè)步驟:
namespace MyNamespace;
class MyClass
{
// ...
}
interface MyInterface
{
public function myMethod();
}
class MyClass implements MyInterface
{
public function myMethod()
{
// ...
}
}
class MyClass
{
private $myProperty;
private function myPrivateMethod()
{
// ...
}
}
class MyClass
{
private $data = array();
public function __set($name, $value)
{
$this->data[$name] = $value;
}
public function __get($name)
{
if (array_key_exists($name, $this->data)) {
return $this->data[$name];
}
return null;
}
}
interface MyRepository
{
public function find($id);
}
class MyClass
{
private $repository;
public function __construct(MyRepository $repository)
{
$this->repository = $repository;
}
public function doSomething()
{
$item = $this->repository->find($id);
// ...
}
}
class Singleton
{
private static $instance;
private function __construct()
{
// ...
}
public static function getInstance()
{
if (null === self::$instance) {
self::$instance = new Singleton();
}
return self::$instance;
}
}
通過(guò)以上方法,可以實(shí)現(xiàn)PHP代碼的高效封裝,提高代碼的可讀性、可維護(hù)性和可擴(kuò)展性。