Disable Admin Bar

Property	Value
description	Disable admin bar for non-admin users on the frontend.
tags	lib, php, wp, oop
rating

Human: 3 - Mixed authorship

Roughly half AI, half human. Core content reviewed, but minor risk remains.

Overview

Disable the WordPress admin bar on the frontend for users who do not pass the configured administrator check.

The snippet runs on after_setup_theme, leaves the admin bar untouched inside wp-admin, and keeps it visible for users who satisfy current_user_can( 'administrator' ). It is useful on membership or client-facing sites where logged-in non-admin users should not see the toolbar.

Variants

Procedural

Add Macro

Add wp-disable-admin-bar macro.

<?php
/**
 * Maybe disable admin bar.
 */
if ( ! function_exists( 'mac_maybe_disable_admin_bar' ) ) {

    function mac_maybe_disable_admin_bar(): void {

        // Keep admin bar in wp-admin.
        if ( is_admin() ) {
            return;
        }

        // Allow administrators.
        if ( current_user_can( 'administrator' ) ) {
            return;
        }

        show_admin_bar( false );
    }
}

add_action( 'after_setup_theme', 'mac_maybe_disable_admin_bar', 10 );

OOP

Add Macro

Add wp-disable-admin-bar--oop macro.

<?php
/**
 * Disable admin bar for non-admin users on the frontend.
 *
 * @package mac-core
 */

declare(strict_types=1);

namespace MacCore\Services\Core;

use MacCore\Contracts\Service;

final class DisableAdminBar implements Service
{
    /**
     * Register WordPress hooks.
     *
     * @return void
     */
    public function register(): void
    {
        \add_action(
            'after_setup_theme',
            [$this, 'maybe_disable_admin_bar'],
            10
        );
    }

    /**
     * Disable the admin bar on the frontend for non-admin users.
     *
     * @return void
     */
    public function maybe_disable_admin_bar(): void
    {
        if ( \is_admin() ) {
            return;
        }

        if ( \current_user_can( 'administrator' ) ) {
            return;
        }

        \show_admin_bar( false );
    }
}