helpplease

function chapters( $atts, $content ) {

$postid = get_post($my_id);

$result_chaptertitle = mysql_query("SELECT * FROM ltd_chapters_titles WHERE chaptertitle='$content' AND postid='$postid'");
$num_rows_chaptertitle = mysql_num_rows($result_chaptertitle);

$result_chaptercount = mysql_query("SELECT * FROM ltd_chapters WHERE postid='$postid'");
$num_rows_chaptercount = mysql_num_rows($result_chaptercount);

if ($num_rows_chaptertitle == 0) {
mysql_query("INSERT INTO ltd_chapters_titles (postid, chaptertitle) VALUES ('$postid','$content')");
}

if ($num_rows_chaptercount == 0) {
mysql_query("INSERT INTO ltd_chapters (postid, chapter) VALUES ('$postid', 1)");
}   else    {
mysql_query("UPDATE ltd_chapters SET chapter=chapter+1 WHERE postid='$postid'");
}

$chaptercount = mysql_query("SELECT chapter FROM table WHERE postid='$postid'");
mysql_query("UPDATE ltd_chapters SET count='$chaptercount' WHERE postid='$postid' AND chaptertitle='$content'");
return '<div id="chapter'.$chaptercount.'"><h3>'.$content.'</h3></div>';

}

add_shortcode('chapter', 'chapters');