ManaPHP\Debugger::start PHP Method

    public function start()
    {
        if (isset($_GET['_debugger']) && preg_match('#^[a-zA-Z0-9_/]+\\.html$#', $_GET['_debugger'])) {
            $file = '@data/debugger' . $_GET['_debugger'];
            if ($this->filesystem->fileExists($file)) {
                exit($this->filesystem->fileGet($file));
            }
        }
        $handler = [$this, '_eventHandlerPeek'];
        $this->eventsManager->peekEvents($handler);
        return $this;
    }