src/Message/HttpCodes.php
public static function reasonPhraseFor($code)
    {
        $status = '';
        if (array_key_exists($code, self::$codes)) {
            $status = self::$codes[$code];
        }
        return $status;
    }
public static function reasonPhraseFor($code)
    {
        $status = '';
        if (array_key_exists($code, self::$codes)) {
            $status = self::$codes[$code];
        }
        return $status;
    }
Get the Reason Phrase for provide code

@param int $code

@return string