Markdown::checkFileExt PHP Méthode

    private function checkFileExt($fileName)
    {
        $pics = explode('.', $fileName);
        $fileExt = strtolower(end($pics));
        if ($fileExt != "md" && $fileExt != "markdown" || $fileExt == $fileName) {
            return false;
        }
        return true;
    }