src/URL/Normalizer.php
public function urlDecodeUnreservedChars($string)
    {
        $string = rawurldecode($string);
        $string = rawurlencode($string);
        $string = str_replace(array( '%2F', '%3A', '%40' ), array( '/', ':', '@' ), $string);

        return $string;
    }
public function urlDecodeUnreservedChars($string)
    {
        $string = rawurldecode($string);
        $string = rawurlencode($string);
        $string = str_replace(array( '%2F', '%3A', '%40' ), array( '/', ':', '@' ), $string);

        return $string;
    }
Decode unreserved characters

@link https://tools.ietf.org/html/rfc3986#section-2.3