lib/Dropbox/RequestUtil.php
static function doPostWithSpecificAuth($clientIdentifier, $authHeaderValue, $userLocale, $host, $path, $params = null)
    {
        Checker::argStringNonEmpty("authHeaderValue", $authHeaderValue);

        $url = self::buildUri($host, $path);

        if ($params === null) $params = array();
        $params['locale'] = $userLocale;

        $curl = self::mkCurlWithAuth($clientIdentifier, $url, $authHeaderValue);
        $curl->set(CURLOPT_POST, true);
        $curl->set(CURLOPT_POSTFIELDS, self::buildPostBody($params));

        $curl->set(CURLOPT_RETURNTRANSFER, true);
        return $curl->exec();
    }
static function doPostWithSpecificAuth($clientIdentifier, $authHeaderValue, $userLocale, $host, $path, $params = null)
    {
        Checker::argStringNonEmpty("authHeaderValue", $authHeaderValue);

        $url = self::buildUri($host, $path);

        if ($params === null) $params = array();
        $params['locale'] = $userLocale;

        $curl = self::mkCurlWithAuth($clientIdentifier, $url, $authHeaderValue);
        $curl->set(CURLOPT_POST, true);
        $curl->set(CURLOPT_POSTFIELDS, self::buildPostBody($params));

        $curl->set(CURLOPT_RETURNTRANSFER, true);
        return $curl->exec();
    }
@param string $clientIdentifier
@param string $authHeaderValue
@param string $userLocale
@param string $host
@param string $path
@param array|null $params

@return HttpResponse

@throws Exception