<p>I'm trying to integrate JazzCash Gateway V2 and want to do a direct payment transaction, which the documentation defines as "This is a single transaction that authorizes a payment and transfers funds from the payer account to the merchant account." </p > <p>Here is my hash function</p> <pre class="brush:php;toolbar:false;">function get_SecureHash($data_array) { ksort($data_array); $str = ''; foreach($data_array as $key => $value) { if(!empty($value)) { $str = $str . '&' . $value; } } $str = $saltkey.$str; $pp_SecureHash = hash_hmac('sha256', $str, $saltkey); return $pp_SecureHash; }</pre> <p>I have matched my hash and it is the same as the hash calculated by the HashCalculator recommended by the documentation.https://github.com/aliabidzaidi/HashCalculator</p> <p>我正在使用以下网址：</p> <pre class="brush:php;toolbar:false;">$post_url = "https://sandbox.jazzcash.com.pk/ApplicationAPI/API/Purchase/PAY";</pre> <p>我的数组如下所示：</p> <pre class="brush:php;toolbar:false;">$data_array = array( "pp_IsRegisteredCustomer"=> "yes", "pp_ShouldTokenizeCardNumber"=> "yes", "pp_CustomerID"=> "25352", "pp_CustomerEmail"=> "abc@abc.com", "pp_CustomerMobile"=> "03331234567", "pp_Version"=> "2.0", "pp_TxnType"=> "MPAY", "pp_TxnRefNo"=> "T".date('YmdHisu'), "pp_MerchantID"=> "MYMERCHANTID", "pp_Password"=> "MYPASSWORD", "pp_Amount"=> "20000", "pp_TxnCurrency"=> "PKR", "pp_TxnDateTime"=> date('YmdHis'), "pp_TxnExpiryDateTime"=> date('YmdHis',strtotime(" 1 hours")), "pp_BillReference"=> "billRef", "pp_Description"=> "Description of transaction", "pp_CustomerCardNumber"=> "512345000000008", "pp_CustomerCardCVV"=> "100", "pp_CustomerCardExpiry"=> "01/39", "pp_SecureHash"=> "", "pp_DiscountedAmount"=> "", "pp_DiscountBank"=> "", "pp_UsageMode"=> "API" );</pre> <p>当我运行curl时，我得到以下输出：</p> <pre class="brush:php;toolbar:false;">{"responseCode":"110","responseMessage":"Please provide a valid value for pp_ Txn Ref No.","status":null,"pp_RetreivalReferenceNo":null,"secureHash":"9DE9F8E571F29CBD1316DFB2F0388E3FBE1CA9BC26FB9C284DF900DCCBA0C301"}</pre> <p>接下来我可以尝试什么？</p>