Custom plugin points inlinemod hook problem

[Oskar20x2]

I need some help, the plugin works well if you moderate only 1 thread, but when you select 2 or more threads only adds the first.

How captured values array of threads and userid?, this is my code:

hook: inlinemod_approvethread

PHP Code:

require_once(DIR . '/includes/points.php');

global $thread;

$post = fetch_postinfo($thread['firstpostid']);

$words = $post['pagetext'];
$words = strip_bbcode($words, true);
$words = preg_split('/\s/', trim($words));
$words = sizeof($words);

$user = $thread['postuserid'];
add_points('PointsThread', $words, $user); 


Sorry for my English...