/** * Determines if mbayer html2text is installed (more information at http://www.mbayer.de/html2text/) * and uses it to automatically create a text version of the html email * * @static * @return void */ protected static function determineHtml2TextIsInstalled() { exec('html2text -version', $output, $check); self::$html2textInstalled = !empty($output) ? true : false; }