What's wrong with my While Loop?

[Kirk Y]

Does anyone see something wrong with the while loop below? It's only returning 1 string, when there are in fact more than 10.

PHP Code:

 $thread_sql = mysql_query("SELECT threadid,title,lastpost,lastposter,forumid FROM thread WHERE visible=1 $wheresql AND open=1 ORDER BY lastpost DESC LIMIT 10");
 
 while($thread_get=mysql_fetch_array($thread_sql))
 {
 $lastpost = $thread_get['lastpost'];
 $poster = $thread_get['lastposter'];
 $tid = $thread_get['threadid'];
 $psql = mysql_query("SELECT postid FROM post WHERE threadid=$tid ORDER BY postid DESC");
 $getp=mysql_fetch_array($psql);
 $pid = $getp['postid'];
 $date2 = date ("m/d/y h:i A" ,$lastpost);
 $title = $thread_get['title'];
 $title = substr($title,0,$txtlimit);
 $output = "$title";
 }