I want to compare two variables like:
$user_role = $user_data->roles;
$post_role = get_field('choose_user_role', $child->ID);
They have:
Array([0] => top_manager [1] => manager)
I try use
$intersection = array_intersect($post_role, $user_role);
but have error:
Warning: array_intersect(): Argument #1 is not an array
