--TEST--
posix_initgroups(): Basic tests
--SKIP--
<?php
if (!extension_loaded('posix')) die('skip - POSIX extension not loaded'); 
if (!function_exists('posix_initgroups')) die('skip posix_initgroups() not found');
?>
--FILE--
<?php

var_dump(posix_initgroups('foo', 'bar'));
var_dump(posix_initgroups(NULL, NULL));

?>
--EXPECTF--
Warning: posix_initgroups() expects parameter 2 to be long, Unicode string given in %s on line %d
bool(false)
bool(false)