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<?php interface Serialize { public function store(array $data); public function recover(); } abstract class MyObject implements Serialize { protected $a; protected $data; public function __construct($a = null) { $this->a = $a; } public function __set($index, $value) { // omito comprobaciones.. si la propiedad no existe la creara como public (si recuerdo bien) $this->$index = $value; } public function __get($index) { return $this->$index; } /* * Al implementar el interfaz, tenemos que definir sus metodos * Uso un typehint, indicando que el parametro es array, y dara un Fatal Error en caso contrario */ public function store(array $data) { $this->data = $data; } public function recover() { return $this->data; } public function foo() { echo 'Hello World!'; } } /* * Clase A extiende MyObject que a la vez implementa el interfaz Serializable (se pueden implementar varios interfaces a la vez * y es la unica forma de crear una clase hija que extienda de dos clases padre... algo que de normal no se puede hacer en PHP) */ class A extends MyObject { protected $b; public function __construct($a, $b) { $this->b = $b; parent::__construct($a); } public function foo($a = null) { $str = $a ? $a : $this->a; echo "Hello $str"; } } $a = new A('foo', 'var'); $a->store(array(1, 2, 3)); var_dump($a->recover()); var_dump($a->foo('test')); var_dump($a->foo());
Output for git.master, git.master_jit, rfc.property-hooks
array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3) } Hello testNULL Hello fooNULL

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