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Disabling WordPress Comments

This code will disable comments site-wide.

// Add this to your theme's functions.php file

function disable_comments() {
    // Disable support for comments and trackbacks in post types
    foreach (get_post_types() as $post_type) {
        if (post_type_supports($post_type, 'comments')) {
            remove_post_type_support($post_type, 'comments');
            remove_post_type_support($post_type, 'trackbacks');
        }
    }
}
add_action('admin_init', 'disable_comments');

// Close comments on the front-end
function disable_comments_status() {
    return false;
}
add_filter('comments_open', 'disable_comments_status', 20, 2);
add_filter('pings_open', 'disable_comments_status', 20, 2);

// Hide existing comments
function disable_comments_hide_existing_comments($comments) {
    $comments = array();
    return $comments;
}
add_filter('comments_array', 'disable_comments_hide_existing_comments', 10, 2);

// Remove comments page in menu
function disable_comments_admin_menu() {
    remove_menu_page('edit-comments.php');
}
add_action('admin_menu', 'disable_comments_admin_menu');

// Redirect any user trying to access comments page
function disable_comments_admin_menu_redirect() {
    global $pagenow;
    if ($pagenow === 'edit-comments.php') {
        wp_redirect(admin_url());
        exit;
    }
}
add_action('admin_init', 'disable_comments_admin_menu_redirect');

// Remove comments metabox from dashboard
function disable_comments_dashboard() {
    remove_meta_box('dashboard_recent_comments', 'dashboard', 'normal');
}
add_action('admin_init', 'disable_comments_dashboard');

// Remove comments links from admin bar
function disable_comments_admin_bar() {
    if (is_admin_bar_showing()) {
        remove_action('admin_bar_menu', 'wp_admin_bar_comments_menu', 60);
    }
}
add_action('init', 'disable_comments_admin_bar');
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