PHP get all arguments as array?

Question

Hey, I was working with a PHP function that takes multiple arguments and formats them. Currently, I'm working with something like this:

function foo($a1 = null, $a2 = null, $a3 = null, $a4 = null){
    if ($a1 !== null) doSomethingWith($a1, 1);
    if ($a2 !== null) doSomethingWith($a2, 2);
    if ($a3 !== null) doSomethingWith($a3, 3);
    if ($a4 !== null) doSomethingWith($a4, 4);
}

But I was wondering if I can use a solution like this:

function foo(params $args){
    for ($i = 0; $i < count($args); $i++)
        doSomethingWith($args[$i], $i + 1);
}

But still invoke the function the same way, similar to the params keyword in C# or the arguments array in JavaScript.

Answer 1

http://us2.php.net/array_walk is what you're looking for.

Answer 2

func_get_args returns an array with all arguments of the current function.