3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public $values = [null, null]; public $a; public $b; public function assign(&$a, &$b) { $this->a = &$a; $this->b = &$b; } public function change() { $this->a = 5; $this->b = 'foo'; } } $a = new A(); $b = &$a->values; $a->assign(...$b); $a->change(); var_dump($a);
Output for 7.0.14, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
object(A)#1 (3) { ["values"]=> &array(2) { [0]=> &int(5) [1]=> &string(3) "foo" } ["a"]=> &int(5) ["b"]=> &string(3) "foo" }

preferences:
138.67 ms | 403 KiB | 153 Q