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kein_kommentar() {
global $wpdb;
    $com_query= "SELECT post_type, post_title AS posttitle, ID, post_name AS postname, SUBSTRING(post_content,1,155) AS post_auszug, post_date, comment_status, comment_count FROM $wpdb->posts
                  WHERE comment_count = '0'
                 AND post_status = 'publish'
                  AND comment_status ='open'
                 AND post_type='post'
                 ORDER BY rand()
                 LIMIT 3";
        $com_result = $wpdb->get_results($com_query);
    if ( empty($com_result) ) {
    echo '<h4 class="sidebar-title">Es gibt keinen unkommentierten Artikel</h4>';
    }
    foreach ($com_result as $comm) {
        $ID = $com->ID;
        $posttitle = $comm->posttitle;
        $postname = $comm->postname;
        $post_auszug = $comm->post_auszug;
        echo '<div class="umfrage">';
    echo '<li style="list-style-type:none"><div class="akt-titel"><a href="'. get_permalink($comm->ID).'" title="'.$comm->posttitle.'">'.$comm->posttitle.'</a><br />';
    echo $comm->post_auszug.' ...</div></li></div>';
    }
}