protected function buildChannelTree()
    {
        if ($this->channels == array($this->channelNameRoot)) {
            return array();
        }
        \sort($this->channels);
        // move root to the top
        $rootKey = \array_search($this->channelNameRoot, $this->channels);
        if ($rootKey !== false) {
            unset($this->channels[$rootKey]);
            \array_unshift($this->channels, $this->channelName);
        }
        $tree = array();
        foreach ($this->channels as $channel) {
            $ref = &$tree;
            $path = \explode('.', $channel);
            foreach ($path as $k) {
                if (!isset($ref[$k])) {
                    $ref[$k] = array();
                }
                $ref = &$ref[$k];
            }
        }
        return $tree;
    }
protected function buildChannelTree()
    {
        if ($this->channels == array($this->channelNameRoot)) {
            return array();
        }
        \sort($this->channels);
        // move root to the top
        $rootKey = \array_search($this->channelNameRoot, $this->channels);
        if ($rootKey !== false) {
            unset($this->channels[$rootKey]);
            \array_unshift($this->channels, $this->channelName);
        }
        $tree = array();
        foreach ($this->channels as $channel) {
            $ref = &$tree;
            $path = \explode('.', $channel);
            foreach ($path as $k) {
                if (!isset($ref[$k])) {
                    $ref[$k] = array();
                }
                $ref = &$ref[$k];
            }
        }
        return $tree;
    }
protected function buildChannelTree ( ) { if ( $ this -> channels == array ( $ this -> channelNameRoot ) ) { return array ( ) ; } \ sort ( $ this -> channels ) ; // move root to the top $ rootKey = \ array_search ( $ this -> channelNameRoot , $ this -> channels ) ; if ( $ rootKey !== false ) { unset ( $ this -> channels [ $ rootKey ] ) ; \ array_unshift ( $ this -> channels , $ this -> channelName ) ; } $ tree = array ( ) ; foreach ( $ this -> channels as $ channel ) { $ ref = & $ tree ; $ path = \ explode ( '.' , $ channel ) ; foreach ( $ path as $ k ) { if ( ! isset ( $ ref [ $ k ] ) ) { $ ref [ $ k ] = array ( ) ; } $ ref = & $ ref [ $ k ] ; } } return $ tree ; }
Build a tree of all channels that have been output

@return array
Build a tree of all channels that have been output