php/ext/standard/tests/array/bug20865.phpt

--TEST--
Bug #20865 (array_key_exists and NULL key)
--FILE--
<?php
	$ta = array(1, 2, 3);
	$ta[NULL] = "Null Value";

	var_dump(array_key_exists(NULL, $ta));
?>
--EXPECT--
bool(true)