src/Debug/Output/Base.php
protected function processLog()
    {
        $str = '';
        foreach ($this->data['log'] as $entry) {
            $channel = isset($entry[2]['channel']) ? $entry[2]['channel'] : null;
            if ($this->channelTest($channel)) {
                $str .= $this->processLogEntryWEvent($entry[0], $entry[1], $entry[2]);
            }
        }
        return $str;
    }
protected function processLog()
    {
        $str = '';
        foreach ($this->data['log'] as $entry) {
            $channel = isset($entry[2]['channel']) ? $entry[2]['channel'] : null;
            if ($this->channelTest($channel)) {
                $str .= $this->processLogEntryWEvent($entry[0], $entry[1], $entry[2]);
            }
        }
        return $str;
    }
Process log entries

@return string