--TEST--
Bug #43495 (array_merge_recursive() crashes with recursive arrays)
--FILE--
<?php
$a=array("key1"=>array("key2"=>array()));
$a["key1"]["key2"]["key3"]=&$a;

$b=array("key1"=>array("key2"=>array()));
$b["key1"]["key2"]["key3"]=&$b;

array_merge_recursive($a,$b);

/* Break recursion */
$a["key1"]["key2"]["key3"] = null;
$b["key1"]["key2"]["key3"] = null;

echo "Done.\n";
?>
--EXPECTF--
Warning: array_merge_recursive(): recursion detected in %sbug43495.php on line %d
Done.