Online PHP editor | refs for UYg9F

<?php class Test { const FOO = ["a" => 0, "b" => 1, "b" => 2, "d" => 3]; public function getTest() { $a = ["a" => 0, "b" => 1, "b" => 2, "d" => 3]; var_dump(empty($a["not_found"])); $b = self::FOO; var_dump(empty($b["not_found"])); var_dump(empty(self::FOO["not_found"])); } } (new Test)->getTest();