php生成V3接口Header使用的Authorization

    protected static function getAuthorization($url, $body, $http_method = "GET")
    {
        $url_parts = parse_url($url);
        $canonical_url = ($url_parts['path'] . (!empty($url_parts['query']) ? "?${url_parts['query']}" : ""));
        $timestamp = Formatter::timestamp();
        $nonce = Formatter::nonce();
        $message = Formatter::request(strtoupper($http_method), $canonical_url, $timestamp, $nonce, $body);


        $priKey = openssl_pkey_get_private(config('wx.merchantPrivateKeyFilePath')); //获取商户私钥内容，这里读取的配置，如果是路劲，直接使用file_get_content来获取

        openssl_sign($message, $raw_sign, $priKey, 'sha256WithRSAEncryption');
        $sign = base64_encode($raw_sign);

        return Formatter::authorization(config('wx.mchid'), $nonce, $sign, $timestamp, config('wx.merchantCertificateSerial'));
    }

 curl_setopt($curl, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']); // 模拟用户使用的浏览器

   return [
            'Authorization: '. $authorization,
            'Accept:application/json',
            'Content-Type:application/json;charset=utf-8',
　　　　　　　'User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:54.0) Gecko/20100101 Firefox/54.0'

        ];