Role-Based Page Access

Hello,
I created a page in wp-admin>New page:
https://www.example.com/new-page-custom-user

There is also a role: seller
I do not want users without this role to access this page. For this, I took advantage of this resource and wrote the following code.
However, I couldn’t get what I wanted. The code is not working. So where am I doing wrong?

My Code:

add_action( 'template_redirect', 'block_access' );
function block_access() {
    if ( is_user_logged_in() && is_page( 'new-page-custom-user' ) ) {
        $user = wp_get_current_user();
        $valid_roles = [ 'administrator', 'seller' ];
        $the_roles = array_intersect( $valid_roles, $user->roles );

        // The current user does not have any of the 'valid' roles.
        if ( empty( $the_roles ) ) {
            wp_redirect(home_url());
            exit;
        }
    }
}

• This topic was modified 3 years, 5 months ago by Steven Stern (sterndata).