Is there a way to loop through a multidimensional array without knowing it's depth?

Question

So far, if I have to loop through a multidimensional array, I use a foreach loop for each dimension.

e.g for two dimensions

foreach($array as $key=&g         


        

Answer 1

Based on previous recursion examples, here is a function that keeps an array of the path of keys a value is under, in case you need to know how you got there:

function recurse($a,$keys=array()) 
    {
        if (!is_array($a)) 
            {
                echo implode("-", $keys)." => $a 
";
                return;
            }
        foreach($a as $k=>$v) 
            {
                $newkeys = array_merge($keys,array($k));
                recurse($v,$newkeys);
            }
    }


recurse($array);