按字典序使用url鍵值對的格式拼接成字符串md5加密簽名

對全部的傳入的非空參數進行按字典序使用url鍵值對的格式拼接成字符串string1

String string1 = key1=value1&key2=value2..

在字符串string1最後拼接上簽名所得的令獲得字符串string2

String string2 = string2 + &密鑰名稱=8934e7d15453e97507ef794cf7b0519d

而後對string2進行MD5加密，再將加密所獲得的32位字符串轉換爲大寫，所獲得的值即爲key_sign

 

$payConfig = array(
            'pay_ver' => '100',
            'pay_type' => '010',
            'service_id' => '015',
            'merchant_no' => '',
            'terminal_id' => '',
            'terminal_trace' => $orderInfo['order_id'],
            'terminal_time' => date("YmdHis"),
            'total_fee' => $totalFee,
            'sub_appid' => '',
            'open_id' => $openid,
            'notify_url' => "http://www.demo.com"
        );
        $access_token = "da3c47c2a8cd47e9be0868712dae0000";
        $payConfig['key_sign'] = self::getSign($payConfig, $access_token);




     //簽名
     function getSign($payConfig, $key) {

        ksort($payConfig);
        $str = "";
        foreach ($payConfig as $k => $v) {
            $str =$str. $k . "=" . $v."&";
        }
        $str=$str."access_token=".$key;

        return strtoupper(md5($str));
    }
 
       //提交
      function postPay($post_data) {
        $postUrl = "";
        $curl = curl_init();
        curl_setopt_array($curl, array(
            CURLOPT_URL => $postUrl,
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_ENCODING => "",
            CURLOPT_MAXREDIRS => 10,
            CURLOPT_TIMEOUT => 0,
            CURLOPT_FOLLOWLOCATION => false,
            CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
            CURLOPT_CUSTOMREQUEST => "POST",
            CURLOPT_POSTFIELDS => json_encode($post_data),
            CURLOPT_HTTPHEADER => array(
                "Content-Type: application/json"
            ),
        ));
        $response = curl_exec($curl);
        var_dump($response);
        curl_close($curl);
        return $response;
    }