--TEST-- Check for reference serialization in php 8 (Original example, not using var_dump) --SKIPIF-- &array(1) { [0]=> array(1) { [0]=> *RECURSION* } } } Expected array(1) { [0]=> &array(1) { [0]=> *RECURSION* } } (Was normalized) cyclic $a = array(array(&$a)); $a[0] - testing functionality 14010600251401060014010600250101 OK But var dump differs: Actual: array(1) { [0]=> &array(1) { [0]=> array(1) { [0]=> *RECURSION* } } } Expected array(1) { [0]=> &array(1) { [0]=> *RECURSION* } } (Was normalized)