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<?php class A{ public static $def = array('head'=>array('a'=>'b'),'fields'=>array('a'=>'field_a','b'=>'field_b')); } class B extends A { public function __construct() { B::$def = array_merge(parrent::$def,array('fields'=>array('c'=>'field_c'))); } } var_dump(B::$def);
Output for git.master, git.master_jit, rfc.property-hooks
array(2) { ["head"]=> array(1) { ["a"]=> string(1) "b" } ["fields"]=> array(2) { ["a"]=> string(7) "field_a" ["b"]=> string(7) "field_b" } }

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