Do not apply to administrators

Hi
I wanted to apply the plugin except to administrators (it would be good perhaps natively with a checkbox)
I have via snippets inserted your recommended code on the pages of the public interface
and I have a fatal error
via chatgpt I asked about the code, here is his answer

Yes, there is a coding error in your function. You are using an undefined variable: $whitelist. However, in your code, the list of allowed roles is stored in the variable $allowed_roles.Correction:

You should replace $whitelist with $allowed_roles.

Here is the corrected code:

function loggedin_bypass_roles( $prevent, $user_id ) {

    // Array of roles to bypass.
    $allowed_roles = array( 'administrator' );

    $user = get_user_by( 'id', $user_id );

    $roles = ! empty( $user->roles ) ? $user->roles : array();

    return ! empty( array_intersect( $roles, $allowed_roles ) );
}

add_filter( 'loggedin_bypass', 'loggedin_bypass_roles', 10, 2 );

Explanation of Fixes:

1. Fixed the $whitelist variable → Replaced it with $allowed_roles.
2. Logical structure remains intact → The role intersection logic works correctly after this fix.

With this modification, your code should work as expected.

The page I need help with: [log in to see the link]