// Are we being requested to hide the specified topic?
	if ($hide_topic)
	{
		// Can't do anything if the board ID is empty, either....
		$user = (int) $user_info['id'];
		if (empty($board))
			continue;

		// Insert the row into the hide_topics table:
		$smcFunc['db_insert']('insert',
			'{db_prefix}hide_topics',
			array('id_member' => 'int', 'id_topic' => 'int', 'id_board' => 'int'),
			array($user, $topic, (int) $board),
			array('id_member', 'id_topic', 'id_board')
		);
	}