foreach ( $tags as $tag ) {

if($tag->term_id == 1  || $tag->term_id == 2)
 continue;
//далее ваш код

}

$news = $_GET['id'];
  $mysqli = mysqli_connect('localhost', 'weltkind', '123321', 'wl_db');
  $sql = "SELECT 
    n.id AS news_id, 
    n.title AS title, 
    n.content AS content, 
    u.id AS user_id 
    FROM news n
    LEFT JOIN users u
    ON n.user_id = u.id
   WHERE n.id = $news LIMIT 1
  ";

  $query = mysqli_query($mysqli, $sql);
$row = array();
$row = mysqli_fetch_assoc($query);
    echo '<div>';
    echo '<h1><a href="news.php?id='.$row['news_id'].'">'.$row['title'].'</a></h1>';
    echo '<p>'.$row['content'].'</p>';
    echo '</div>';

document.getElementById('ид_элемента').setAttribute("name", "");