--TEST--
array_walk() tests
--FILE--
<?php

var_dump(array_walk());
$var = 1;
var_dump(array_walk($var,1));
$var = array();
var_dump(array_walk($var,""));

function foo($v1, $v2, $v3) {
	var_dump($v1);
	var_dump($v2);
	var_dump($v3);
}

$var = array(1,2);
var_dump(array_walk($var, "foo", "data"));

function foo2($v1, $v2, $v3) {
	throw new Exception($v3);
}

try {
	var_dump(array_walk($var,"foo2", "data"));
} catch (Exception $e) {
	var_dump($e->getMessage());
}

echo "Done\n";
?>
--EXPECTF--
Warning: array_walk() expects at least 2 parameters, 0 given in %s on line %d
NULL

Warning: array_walk() expects parameter 2 to be a valid callback, no array or string given in %s on line %d
NULL

Warning: array_walk() expects parameter 2 to be a valid callback, function '' not found or invalid function name in %s on line %d
NULL
int(1)
int(0)
unicode(4) "data"
int(2)
int(1)
unicode(4) "data"
bool(true)
unicode(4) "data"
Done