hash_hmac() 期望参数 2 是字符串，给定数组

Question

我收到此错误：

[2019-04-04 05:00:04] local.ERROR: hash_hmac() expects parameter 2 to be
 string, array given {"exception":"[object] (ErrorException(code: 0): hash_hmac() 
expects parameter 2 to be string, array given at /home/domains/domain.com/smm/app/Http/Controllers/CoinPaymentsController.php:132)[stacktrace]
#0 [internal function]: Illuminate\Foundation\Bootstrap\HandleExceptions->handleError(2, 'hash_hmac() exp...', '/home/u37281288...', 132, Array)#1 

这是我的代码：

 public function ipn(Request $request)
    {
        if (!$request->filled('ipn_mode') || !$request->filled('merchant')) {
            activity('coinpayments')
                ->withProperties(['ip' => $request->ip()])
                ->log('Missing POST data from callback.');
            die();
        }
        if ($request->input('ipn_mode') == 'httpauth') {
            //Verify that the http authentication checks out with the users supplied information
            if ($request->server('PHP_AUTH_USER') != $this->merchantId || $request->server('PHP_AUTH_PW') != $this->secretKey) {
                activity('coinpayments')
                    ->withProperties(['ip' => $request->ip()])
                    ->log('Unauthorized HTTP Request');
                die();
            }
        } elseif ($request->input('ipn_mode') == 'hmac') {
            // Create the HMAC hash to compare to the recieved one, using the secret key.
// line 132 of the error...
            $hmac = hash_hmac("sha512", $request->all(), $this->secretKey);
            if ($hmac != $request->server('HTTP_HMAC')) {
                activity('coinpayments')
                    ->withProperties(['ip' => $request->ip()])
                    ->log('Unauthorized HMAC Request');
                die();
            }
        } else {
            activity('coinpayments')
                ->withProperties(['ip' => $request->ip()])
                ->log('Unauthorized HMAC Request');
            die();
        }
        // Passed initial security test - now check the status
        $status = intval($request->input('status'));
        $statusText = $request->input('status_text');
        if ($request->input('merchant') != $this->merchantId) {
            activity('coinpayments')
                ->withProperties(['ip' => $request->ip()])
                ->log('Mismatching merchant ID. MerchantID:' . $request->input('merchant'));
            die();
        }

我正在尝试在我的网站上添加CoinPayments..当我设置IPN URL时，我收到此错误。付款已进入我的帐户，但产品无法下载。

Answer 1

在将错误消息发布到堆栈溢出中之前，您需要学习正确阅读错误消息， $request->all()给你一个数组，但hash_hmac()方法需要一个字符串，如果你想要所有数据。然后您可以使用implode()函数从输入数组制作字符串。

$inputs = $request->all();
$string = implode("",$inputs);
$hmac = hash_hmac("sha512", $string, $this->secretKey); 

Answer 2

该错误告诉您传递给函数hash_hmac()的第二个参数是一个数组，它必须是一个字符串。

$request->all()) 将所有输入数据作为数组检索

尝试传递输入名称而不是所有输入名称，例如：

$name = $request->input('name');
$hmac = hash_hmac("sha512", $name, $this->secretKey);