itstructure / yii2-template-multilanguage

     *

     * @throws \InvalidArgumentException

     */

    public static function setTrustedHeaderName($key, $value)

    {

        if (!array_key_exists($key, self::$trustedHeaders)) {

            throw new \InvalidArgumentException(sprintf('Unable to set the trusted header name for key "%s".', $key));

        }

        self::$trustedHeaders[$key] = $value;

    }

    /**

     * Gets the trusted proxy header name.

     *

     * @throws \InvalidArgumentException

     */

    public static function getTrustedHeaderName($key)

    {

        if (!array_key_exists($key, self::$trustedHeaders)) {

            throw new \InvalidArgumentException(sprintf('Unable to get the trusted header name for key "%s".', $key));

        }

        return self::$trustedHeaders[$key];

    }

    /**

     * Normalizes a query string.