protected function getKernal()
    {
        if (!$this->kernel) {
            $this->kernel = file_get_contents($this->kernel_filename);
        }

        return $this->kernel;
    }
protected function getKernal()
    {
        if (!$this->kernel) {
            $this->kernel = file_get_contents($this->kernel_filename);
        }

        return $this->kernel;
    }
protected function getKernal ( ) { if ( ! $ this -> kernel ) { $ this -> kernel = file_get_contents ( $ this -> kernel_filename ) ; } return $ this -> kernel ; }
Get AppKernal content.

@return string
Get AppKernal content .