neomerx / json-api

     *

     * @return array|null

     */

    private function getArrayParamOrNull(array $parameters, $name)

    {

        $value = $this->getParamOrNull($parameters, $name);

        $isArrayOrNull = ($value === null || is_array($value) === true);

        $isArrayOrNull === true ?: E::throwException(new E([], E::HTTP_CODE_BAD_REQUEST));

        return $value;

    }

    /**

     * @param array $parameters

     *

     * @return string|null

     */

    private function getStringParamOrNull(array $parameters, $name)

    {

        $value = $this->getParamOrNull($parameters, $name);

        $isStringOrNull = ($value === null || is_string($value) === true);

        $isStringOrNull === true ?: E::throwException(new E([], E::HTTP_CODE_BAD_REQUEST));

        return $value;

    }

    /**

     * @param array  $parameters