static function get($post_id)
	{
		global $db;
		//$sql = "SELECT p.*, t.topic_first_post_id, t.topic_last_post_id
		//		FROM " . POSTS_TABLE . " p, " . TOPICS_TABLE . " t
		//		WHERE p.post_id=" . intval($this->post_id) . " AND t.topic_id = p.topic_id";
		$sql = "SELECT * FROM " . POSTS_TABLE . " WHERE post_id=" . intval($post_id);
		$result = $db->sql_query($sql);
		$post_data = $db->sql_fetchrow($result);
		$db->sql_freeresult($result);

		if(!$post_data)
		{
			//post does not exist, return false
			return false;
		}


		return post::from_array($post_data);
	}