uryvek admin-bar.php

add_action('admin_bar_menu', 'add_toolbar_items', 100);
function add_toolbar_items($admin_bar){

    // ziskani poctu zprav (vsechny + neprectene)
    global $wpdb, $current_user;
        $num_pm = $wpdb->get_var( 'SELECT COUNT(*) FROM ' . $wpdb->prefix . 'pm WHERE `recipient` = "' . $current_user->user_login . '" AND `deleted` != "2"' );
        $num_unread = $wpdb->get_var( 'SELECT COUNT(*) FROM ' . $wpdb->prefix . 'pm WHERE `recipient` = "' . $current_user->user_login . '" AND `read` = 0 AND `deleted` != "2"' );

        if ( empty( $num_pm ) ) {
            $num_pm = 0;
        }

        if ( empty( $num_unread ) ) {
            $num_unread = 0;
            $nazev = 'Soukromé zprávy';
            $titulek = 'Žádné nové zprávy';
        }

        else {
            $nazev = 'Soukromé zprávy (' . $num_unread . ')';
            $titulek = $num_unread . 'nové zprávy';

        }



    $admin_bar->add_menu( array(
        'id'    => 'my-item',
        'title' => $nazev,
        'href'  => self_admin_url('/admin.php?page=rwpm_inbox'),
        'meta'  => array(
            'title' => $titulek
        ),
    ));
    $admin_bar->add_menu( array(
        'id'    => 'my-sub-item',
        'parent' => 'my-item',
        'title' => 'Odeslat zprávu',
        'href'  => self_admin_url('/admin.php?page=rwpm_send'),
        'meta'  => array(
            'title' => __('Odeslat zprávu'),
            'target' => '_blank',
            'class' => 'my_menu_item_class'
        ),
    ));
    $admin_bar->add_menu( array(
        'id'    => 'my-second-sub-item',
        'parent' => 'my-item',
        'title' => 'Odeslané',
        'href'  => self_admin_url('/admin.php?page=rwpm_outbox'),
        'meta'  => array(
            'title' => __('Odeslané'),
/*          'target' => '_blank',*/
            'class' => 'my_menu_item_class'
        ),
    ));
}