// JSON_PRETTY_PRINT is available from PHP 5.4.
$print = defined('JSON_PRETTY_PRINT') ? JSON_PRETTY_PRINT : 0;
$data = self::getPhpHeaders() . json_encode($conf, $print) . self::getPhpSuffix();
- if (!file_put_contents($filepath, $data)) {
+ if (empty($filepath) || !file_put_contents($filepath, $data)) {
throw new \Shaarli\Exceptions\IOException(
$filepath,
t('Shaarli could not create the config file. '.