shiki

#!/usr/bin/env php
<?php
/*
Copyright 2013 Stuart Carnie and other contributors

Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to

shiki

public static function getSubTopicIdsOfTopic($topicId, &$topics = null) 
{
  $list = array();
  if (empty($topics))
    $topics = PTopic::model()->findAll();
  foreach ($topics as $key => $topic) {
    if ($topic->parentId == $topicId) {
      $list[] = $topic->id;
      $list = array_merge($list, self::getSubTopicIdsOfTopic($topic->id, $topics));
    }