* be able to extract the timestamp.
*
* @param string $token
- * @param int|null
+ * @return int|null
*/
public static function getTimestamp( $token ) {
$suffixLen = strlen( self::SUFFIX );
/**
* Get the string representation of the token at a timestamp
- * @param int timestamp
+ * @param int $timestamp
* @return string
*/
protected function toStringAtTimestamp( $timestamp ) {