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<?php class A { public static $data = ['a']; public static function getData() { $result = static::$data; $class = get_called_class(); while ($class = get_parent_class($class)) { $result = array_merge($result, $class::$data); } return $result; } } class B extends A { public static $data = ['b']; } class C extends B { public static $data = ['c']; } class D extends C { public static $data = ['d']; } var_dump(A::getData()); var_dump(B::getData()); var_dump(C::getData()); var_dump(D::getData());
Output for git.master, git.master_jit, rfc.property-hooks
array(1) { [0]=> string(1) "a" } array(2) { [0]=> string(1) "b" [1]=> string(1) "a" } array(3) { [0]=> string(1) "c" [1]=> string(1) "b" [2]=> string(1) "a" } array(4) { [0]=> string(1) "d" [1]=> string(1) "c" [2]=> string(1) "b" [3]=> string(1) "a" }

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