php-8.0.30-src/Zend/tests/bug35163_2.phpt

--TEST--
Bug #35163.2 (Array elements can lose references)
--FILE--
<?php
$a = array(1);
$b = 'a';
${$b}[] =& $$b;
${$b}[] =& $$b;
${$b}[0] = 2;
var_dump($a);
$a[0] = null;
$a = null;
?>
--EXPECT--
array(3) {
  [0]=>
  int(2)
  [1]=>
  *RECURSION*
  [2]=>
  *RECURSION*
}