How to pass an array into a function, and return the results with an array

Question

So I\'m trying to learn how to pass arrays through a function, so that I can get around PHP\'s inability to return multiple values. Haven\'t been able to get anything to work so

Answer 1

You seem to be looking for pass-by-reference, to do that make your function look this way (note the ampersand):

function foo(&$array)
{
    $array[3]=$array[0]+$array[1]+$array[2];
}

Alternately, you can assign the return value of the function to a variable:

function foo($array)
{
    $array[3]=$array[0]+$array[1]+$array[2];
    return $array;
}

$waffles = foo($waffles)