--TEST-- Bug #72598 (Reference is lost after array_slice()) --FILE-- <?php function ref(&$ref) { var_dump($ref); } new class { function __construct() { $args = [&$this]; for ($i = 0; $i < 2; $i++) { $a = array_slice($args, 0, 1); call_user_func_array('ref', $a); } } }; ?> --EXPECTF-- Warning: Parameter 1 to ref() expected to be a reference, value given in %sbug72598.php on line 11 object(class@anonymous)#1 (0) { } Warning: Parameter 1 to ref() expected to be a reference, value given in %sbug72598.php on line 11 object(class@anonymous)#1 (0) { }