Disable the Admin Bar for Specific Roles

The Problem

By default, any logged-in WordPress user sees the black admin toolbar across the entire front end of the site, including customers and subscribers who have no use for its "Edit Post," "New," or site-health quick links. On a customer-facing site that's a visual inconsistency at best — a toolbar that looks like an internal tool showing up for people outside the team — and on some themes it can visibly shift layout or overlap fixed headers, since WordPress reserves space for it by default wherever it's shown.

The Code

add_filter( 'show_admin_bar', 'devmubs_hide_admin_bar_for_role' );

function devmubs_hide_admin_bar_for_role( $show ) {
    if ( current_user_can( 'edit_posts' ) ) {
        return $show;
    }

    return false;
}

How It Works

The `show_admin_bar` filter runs on every front-end page load right before WordPress decides whether to render the toolbar, and receives whatever value core has already determined (`true` for any logged-in user by default). The callback checks `current_user_can( 'edit_posts' )` as a stand-in for "has genuine admin-area business" — Authors, Editors, and Administrators pass and keep the bar exactly as WordPress would have shown it; Subscribers and WooCommerce Customers don't pass, since they lack that capability by default, and the filter returns `false` for them instead, which suppresses the toolbar entirely for that request.

Where To Add This

Your child theme's functions.php. This is a single small filter with no dependency on anything else, so keeping it in the theme's functions.php alongside other simple front-end display tweaks is reasonable — there's little value in isolating one filter this size into its own plugin.