PHP Function Argument to an array

Question

Can you do something crazy like this

function cool_function($pizza, $ice_cream) { 

   make the arguments in the array into an array 
   return $array_of_parama         


        

Answer 1

Actually, this is pretty easy (and read the manual: func_get_args — Returns an array containing a function's argument list, see as well: Variable-length argument lists):

function cool_function($pizza, $ice_cream) { 
   return func_get_args();
}

but as asked in comments, why do you need this?

Or do you need the variable names? Reflection Docs is your friend:

function cool_named($neutron, $electron)
{
    $f = new ReflectionFunction(__FUNCTION__);
    $p = array();    
    foreach($f->getParameters() as $p1)
        $p[] = '$'.$p1->name;

    return $p;
}

var_dump(cool_named());

Or just both? (Edit: taking under-length, optional and over-length parameters into account):

function overall($neutron, $electron, $quark = 'xiaro')
{
    $f = new ReflectionFunction(__FUNCTION__);
    $defined = $f->getParameters();
    $passed = func_get_args() + array_fill(0, count($defined), NULL);

    foreach($defined as &$param)
        $param = '$'.$param->name;

    return array_combine($defined + array_keys($passed), $passed);
}

var_dump(overall('clara', 'peter', 'moon', 'jupiter'));