Recursive array_search

Question

I have a multi-dimensional array:

$categories = array(
    array(
        \'CategoryID\' => 14308,
        \'CategoryLevel\' => 1,
        \'CategoryNa         


        

Answer 1

You are ignoring the returned value of your inner call to recursive_array_search. Don't do that.

/*
 * Searches for $needle in the multidimensional array $haystack.
 *
 * @param mixed $needle The item to search for
 * @param array $haystack The array to search
 * @return array|bool The indices of $needle in $haystack across the
 *  various dimensions. FALSE if $needle was not found.
 */
function recursive_array_search($needle,$haystack) {
    foreach($haystack as $key=>$value) {
        if($needle===$value) {
            return array($key);
        } else if (is_array($value) && $subkey = recursive_array_search($needle,$value)) {
            array_unshift($subkey, $key);
            return $subkey;
        }
    }
}