PHP Function Argument to an array - php

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_paramaters // my new array
} // end function
print_r(cool_function); // outputs array(0 => pizza, 1=> ice cream)

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'));

Answer 2

I'm not sure if you're looking for func_get_args which return all arguments passed to a function, or the ReflectionFunction class.
A basic example of func_get_args:
function cool_function($pizza, $ice_cream) {
return func_get_args();
}
But you don't need the arguments to make this work:
function cool_function() {
return func_get_args();
}
// cool_function(1,2,3) will return array(1,2,3)
The reflection option:
/**
* Returns an array of the names of this function
*/
function getMyArgNames($a,$b,$c)
{
$args = array();
$refFunc = new ReflectionFunction(__FUNCTION__);
foreach( $refFunc->getParameters() as $param ){
$args[] = $param->name;
}
return $args;
}
Or, for the really crazy:
/**
* Returns an associative array of the names of this function mapped
* to their values
*/
function getMyArgNames($a,$b,$c)
{
$received = func_get_args();
$i = 0;
$args = array();
$refFunc = new ReflectionFunction(__FUNCTION__);
foreach( $refFunc->getParameters() as $param ){
$args[$param->name] = $received[$i++];
}
// include all of those random, optional arguments.
while($i < count($received)) $args[] = $received[$i++];
return $args;
}

Answer 3

do you mean
function valuesToArray($value1,$value2){return array($value1,$value2);}

Answer 4

If I got you right, you so it like this:
function cool_function($pizza, $ice_cream) {
return array($pizza, $ice_cream);
}
but you could simply do that:
$new_var = array($pizza, $ice_cream);