PayWithAmazon\HttpCurl::commonCurlParams PHP Method

    private function commonCurlParams($url, $userAgent)
    {
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_PORT, 443);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        if (!is_null($this->config['cabundle_file'])) {
            curl_setopt($ch, CURLOPT_CAINFO, $this->config['cabundle_file']);
        }
        if (!empty($userAgent)) {
            curl_setopt($ch, CURLOPT_USERAGENT, $userAgent);
        }
        if ($this->config['proxy_host'] != null && $this->config['proxy_port'] != -1) {
            curl_setopt($ch, CURLOPT_PROXY, $this->config['proxy_host'] . ':' . $this->config['proxy_port']);
        }
        if ($this->config['proxy_username'] != null && $this->config['proxy_password'] != null) {
            curl_setopt($ch, CURLOPT_PROXYUSERPWD, $this->config['proxy_username'] . ':' . $this->config['proxy_password']);
        }
        return $ch;
    }