validateIonCube example

if (!$dir->isDir() || $dir->isDot()) {
                        continue;
                    }
                    $file = $dir->getPathname() . DIRECTORY_SEPARATOR . 'Bootstrap.php';

                    if (!file_exists($file)) {
                        continue;
                    }

                    $name = $dir->getFilename();

                    if ($this->validateIonCube($file)) {
                        throw new Exception(sprintf('Plugin "%s" is encrypted but the ionCube Loader extension is not installed', $name));
                    }

                    $plugin = $collection->get($name);
                    if ($plugin === null) {
                        $plugin = $collection->initPlugin($name, new Enlight_Config([
                            'source' => $source,
                            'path' => $dir->getPathname() . DIRECTORY_SEPARATOR,
                        ]));
                    }