How to splice an array to insert array at specific position?

Question

$custom = Array(
            Array(
                'name'  =>  $name1,
                'url'   =>  $url1
            ),
            Array(
                'name'  =>  $name_a,
                'url'   =>  $url_a
            )
        );

I am attempting to splice the array with the following:

$bread_elem = array('name' => 'Golf', 'url' => $slug . $parent_slug);
array_splice($custom, 1, 0, $bread_elem);

I want my array to become the following, with the value of $sale_bread_elem inserted into position one within the array. I can't see what I am doing wrong.

$custom = Array(
            Array(
                'name'  =>  $name1,
                'url'   =>  $url1
            ),
            Array(
                'name'  =>  'Golf',
                'url'   =>  $slug . $parent_slug
            ),
            Array(
                'name'  =>  $name_a,
                'url'   =>  $url_a
            )
        );

Answer 1

array_splice^­Docs takes an array of elements to insert. So the call should actually be

array_splice($custom, 1, 0, array($bread_elem));