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<?php class example{ /*Member variables*/ protected $a; protected $b = array(); public function __get($name){ return $this->$name; } public function __set($name, $value){ $this->$name = $value; } } $fun = new example(); $fun->a = 'yay'; $fun->b['coolio'] = 'yay2'; var_dump($fun);
Output for git.master, git.master_jit, rfc.property-hooks
Notice: Indirect modification of overloaded property example::$b has no effect in /in/1feId on line 21 object(example)#1 (2) { ["a":protected]=> string(3) "yay" ["b":protected]=> array(0) { } }

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