Logger::outputWarning PHP Method

    public function outputWarning($caller, $msg, $shift = 0)
    {
        // first, let's see if we should log this
        $frame = $this->findFrame('warning', $shift);
        if ($this->log_output) {
            $this->logLine($this->txtLine("warning: {$msg}", $frame), 'warning', 'error');
        }
        if (!$this->web_output) {
            return true;
        } else {
            echo $this->html_stdout ? $this->htmlLine("{$msg}", $frame, 'warning') : $this->txtLine("{$msg}", $frame, 'warning');
            return true;
        }
    }