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<?php class my { private $a = null; protected $b = 'b'; public $c = 'c'; function __construct($b, $c) { $this->a = 'a1'; $this->b = $b; $this->c = $c; } public function test() { echo $this->a, $this->b, $this->c; } } class my_ex extends my { function __construct() { $cleaner = function () { echo "Clearing all properties", "<br>"; unset($this->a, $this->b, $this->c); }; $cleaner->bindTo($this, get_parent_class($this))->__invoke(); } function __get($name) { $lazySetter = function($name) { echo "Lazy-loading property {$name}", "<br>"; $this->$name = "new{$name}"; }; $lazySetter->bindTo($this, get_parent_class($this))->__invoke($name); } } $my = new my_ex(1,2); $my->test();
Output for git.master, git.master_jit, rfc.property-hooks
Clearing all properties<br>Lazy-loading property a<br>Lazy-loading property b<br>Lazy-loading property c<br>

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