Php RESTAPI结构阻止数据库访问

我正在托管文件hostinger.in，并正在实现REST体系结构。当我在没有休息的情况下实现代码时，我没有得到任何错误。但现在看来我无法访问MySql数据库。我缩小了可能出现的错误，当我尝试注册一个用户时，数据库似乎无法访问。代码如下：

  public function sendOtp($mobile, $model, $brand, $device, $fingerprint, $hardware){

    //Checking for User registration
    if (!$this->isUserExists($mobile)) {

       $otp = rand(100000, 999999);

        $stmt = $this->con->prepare("INSERT INTO user_register(mobile, registered_mobile_model, registered_mobile_brand, registered_mobile_device, registered_mobile_fingerprint, registered_mobile_hardware, otp) values(?, ?, ?, ?, ?, ?, ?)");

        $stmt->bind_param("sssssss", $mobile, $model, $brand, $device, $fingerprint, $hardware, $otp);

        $result = $stmt->execute();

        $stmt->close();

        //If statment executed successfully
        if ($result) {
            //Returning 0, otp sent
            return 0;
        } else {
            //Returning 1, failed to insert
            return 1;
        }

    } else {
        //user exists, update info and sent otp 


        $otp = rand(100000, 999999);

        //Crating an statement
        $stmt = $this->con->prepare("UPDATE user_register set otp = ?, registered_mobile_model = ?, registered_mobile_brand = ?, registered_mobile_device = ?, registered_mobile_fingerprint = ?, registered_mobile_hardware = ?  WHERE mobile = ?");

        //Binding the parameters
        $stmt->bind_param("sssssss", $otp, $model, $brand, $device, $fingerprint, $hardware, $mobile);

        //Executing the statement
        $result = $stmt->execute();

        //Closing the statement
        $stmt->close();

        //If statement executed successfully
        if ($result) {
            //Returning 0, user insert/update success, otp sent
            return 0;
        } else {
            //Returning 1, failed to insert
            return 1;
        }



    }
}


  private function isUserExists($mobile) {
    $stmt = $this->con->prepare("SELECT id from user_register WHERE mobile = ?");
    $stmt->bind_param("s", $mobile);
    $stmt->execute();
    $stmt->store_result();
    $num_rows = $stmt->num_rows;
    $stmt->close();
    return $num_rows > 0;
}

用于重新路由api调用的index.php代码：

     $app->post('/sendotp', function () use ($app) {

//Verifying the required parameters
verifyRequiredParams(array('mobile', 'model', 'brand', 'device', 'fingerprint', 'hardware'));

//Creating a response array
$response = array();

//reading post parameters
$mobile = $app->request->post('mobile');
$model = $app->request->post('model');
$brand = $app->request->post('brand');
$device = $app->request->post('device');
$fingerprint = $app->request->post('fingerprint');
$hardware = $app->request->post('hardware');

//Creating a DbOperation object
$db = new DbOperation();

$res = $db->sendOtp($mobile, $model, $brand, $device, $fingerprint, $hardware);

//If the result returned is 0 means success
if ($res == 0) {
    //Making the response error false
    $response["error"] = false;
    //Adding a success message
    $response["message"] = "OTP Sent";
    //Displaying response
    echoResponse(201, $response);

//If the result returned is 1 means failure
} else if ($res == 1) {
    $response["error"] = true;
    $response["message"] = "Oops! An error occurred while registering";
    echoResponse(200, $response);

}
});

---

只需确保新的

DbOperation

确实打开了连接。你的代码看起来不错（我的意思是它应该可以工作）。这不是休息与否的问题。REST只是其他系统/人员调用您的API、url组织和操作的方式。不会改变连接到数据库的方式。只要确保DbOperation正常工作。DbOperation正在打开连接。我调查了这个过程，发现请求附带的值为null。我没有使用DbOperation，只是将参数发回以响应检查，发现它们为null。但我似乎无法回答为什么？我尝试使用不同的chrome扩展来发送数据，但似乎都是空的。你在浏览器上使用post方法吗？是的，我使用post方法和内容类型application/x-www-form-unlcoded。事实上，我尝试了每种内容类型，但参数中仍然得到空值