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<?php class Foo { private $allowedNames = ['onlyThis', 'andThat']; public function __set($name, $value) { // only allow specific properties to be set pubically if (!in_array($name, $this->allowedNames)) { throw new Exception("No! Bad dog!"); } else { $this->$name = $value; } } } $foo = new Foo; $foo->onlyThis = true; $foo->andThat = false; var_dump($foo); // This won't work $foo->baz = 1;
Output for git.master, git.master_jit, rfc.property-hooks
Deprecated: Creation of dynamic property Foo::$onlyThis is deprecated in /in/ivnYo on line 10 Deprecated: Creation of dynamic property Foo::$andThat is deprecated in /in/ivnYo on line 10 object(Foo)#1 (3) { ["allowedNames":"Foo":private]=> array(2) { [0]=> string(8) "onlyThis" [1]=> string(7) "andThat" } ["onlyThis"]=> bool(true) ["andThat"]=> bool(false) } Fatal error: Uncaught Exception: No! Bad dog! in /in/ivnYo:8 Stack trace: #0 /in/ivnYo(21): Foo->__set('baz', 1) #1 {main} thrown in /in/ivnYo on line 8
Process exited with code 255.

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