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<?php class x { protected $id = '4'; public function getId(){return $this->id;} } $y = new class extends x { public function setId($q){$this->id = $q;} }; function debug(x $param){ var_dump($param); } debug($y); $y->setId('5'); debug($y);
Output for git.master, git.master_jit, rfc.property-hooks
object(x@anonymous)#1 (1) { ["id":protected]=> string(1) "4" } object(x@anonymous)#1 (1) { ["id":protected]=> string(1) "5" }

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