Bitrix24\Bitrix24::executeRequest PHP Method

    protected function executeRequest($url, array $additionalParameters = array())
    {
        $retryableErrorCodes = array(CURLE_COULDNT_RESOLVE_HOST, CURLE_COULDNT_CONNECT, CURLE_HTTP_NOT_FOUND, CURLE_READ_ERROR, CURLE_OPERATION_TIMEOUTED, CURLE_HTTP_POST_ERROR, CURLE_SSL_CONNECT_ERROR);
        $curlOptions = array(CURLOPT_FOLLOWLOCATION => true, CURLOPT_RETURNTRANSFER => true, CURLINFO_HEADER_OUT => true, CURLOPT_VERBOSE => true, CURLOPT_CONNECTTIMEOUT => 5, CURLOPT_TIMEOUT => 5, CURLOPT_USERAGENT => strtolower(__CLASS__ . '-PHP-SDK/v' . self::VERSION), CURLOPT_POST => true, CURLOPT_POSTFIELDS => http_build_query($additionalParameters), CURLOPT_URL => $url);
        if (is_array($this->customCurlOptions)) {
            foreach ($this->customCurlOptions as $customCurlOptionKey => $customCurlOptionValue) {
                $curlOptions[$customCurlOptionKey] = $customCurlOptionValue;
            }
        }
        $this->rawRequest = $curlOptions;
        $curl = curl_init();
        curl_setopt_array($curl, $curlOptions);
        $curlResult = false;
        $retriesCnt = $this->retriesToConnectCount;
        while ($retriesCnt--) {
            $this->log->debug(sprintf('try [%s] to connect to host [%s]', $retriesCnt, $this->getDomain()));
            $curlResult = curl_exec($curl);
            // handling network I/O errors
            if (false === $curlResult) {
                $curlErrorNumber = curl_errno($curl);
                $errorMsg = sprintf('in try[%s] cURL error (code %s): %s' . PHP_EOL, $retriesCnt, $curlErrorNumber, curl_error($curl));
                if (false === in_array($curlErrorNumber, $retryableErrorCodes, true) || !$retriesCnt) {
                    $this->log->error($errorMsg, $this->getErrorContext());
                    curl_close($curl);
                    throw new Bitrix24IoException($errorMsg);
                } else {
                    $this->log->warning($errorMsg, $this->getErrorContext());
                }
                usleep($this->getRetriesToConnectTimeout());
                continue;
            }
            $this->requestInfo = curl_getinfo($curl);
            $this->rawResponse = $curlResult;
            $this->log->debug('cURL request info', array($this->getRequestInfo()));
            curl_close($curl);
            break;
        }
        // handling URI level resource errors
        switch ($this->requestInfo['http_code']) {
            case 403:
                $errorMsg = sprintf('portal [%s] deleted, query aborted', $this->getDomain());
                $this->log->error($errorMsg, $this->getErrorContext());
                throw new Bitrix24PortalDeletedException($errorMsg);
                break;
            case 502:
                $errorMsg = sprintf('bad gateway to portal [%s]', $this->getDomain());
                $this->log->error($errorMsg, $this->getErrorContext());
                throw new Bitrix24BadGatewayException($errorMsg);
                break;
        }
        // handling server-side API errors: empty response from bitrix24 portal
        if ($curlResult === '') {
            $errorMsg = sprintf('empty response from portal [%s]', $this->getDomain());
            $this->log->error($errorMsg, $this->getErrorContext());
            throw new Bitrix24EmptyResponseException($errorMsg);
        }
        // handling json_decode errors
        $jsonResult = json_decode($curlResult, true);
        unset($curlResult);
        $jsonErrorCode = json_last_error();
        if (null === $jsonResult && JSON_ERROR_NONE !== $jsonErrorCode) {
            /**
             * @todo add function json_last_error_msg()
             */
            $errorMsg = 'fatal error in function json_decode.' . PHP_EOL . 'Error code: ' . $jsonErrorCode . PHP_EOL;
            $this->log->error($errorMsg, $this->getErrorContext());
            throw new Bitrix24Exception($errorMsg);
        }
        return $jsonResult;
    }