Parameterized Queries

Question

Parameterized Queries

I am currently studying parameterized queries, as there are advantages to using them.

Can someone give some pointers by converting this block of code into a parameterized version?

Thank.

if(isset($_GET['news_art_id']) && (!empty($_GET['news_art_id'])))
{
    $news_art_id = htmlentities(strip_tags($_GET['news_art_id']));
    $news_art_id = validate_intval($news_art_id);

    //echo $news_art_id;
    $_SESSION['news_art_id'] = $news_art_id;

    // Assign value to status.
    $onstatus = 1;
    settype($onstatus, 'integer');

    $query = 'SELECT M.id, M.j_surname, M.j_points_count, M.j_level, A.j_user_id,A.id, A.jart_title, A.jart_tags, A.jart_description, A.jart_createddate FROM jt_articles A, jt_members M WHERE M.id = A.j_user_id AND A.id = ' . check_db_query_id($news_art_id) . " AND A.jart_status = $onstatus;";

    $result = mysql_query($query) or die('Something went wrong. ' . mysql_error());  
    $artrows = mysql_num_rows($result);
}