curl发送带请求头，带请求参数，带cookie的请求

/**
     * 发送一个带 cookie 的请求
     *
     * @param string $url
     * @param string $cookie
     * @return mixed
     */
    private function get_result($url, $cookie)
    {
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);

        $header = array();
        //curl_setopt($ch,CURLOPT_POST,true);
        //curl_setopt($ch, CURLOPT_POSTFIELDS, $fields);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_HEADER, true);
        curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
        curl_setopt($ch, CURLOPT_COOKIE, $cookie);

        $content = curl_exec($ch);
        curl_close($ch);
        return $content;
    }

注意请求头的写法：array('Authorization:'.$sign);

/**
     * 发送一个post请求，包含请求头，请求参数
     * @param $url
     * @param $sign
     * @param $jsonStr
     * @return mixed
     */
    private function post($url,$sign,$jsonStr)
    {
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);

        $header = array('Authorization:'.$sign);
        curl_setopt($ch,CURLOPT_POST,true);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_HEADER, true);
        curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
        curl_setopt($ch, CURLOPT_POSTFIELDS , $jsonStr );
        $content = curl_exec($ch);
        curl_close($ch);
        return $content;
    }