Php 无法从控制器方法传递的payumoney成功响应中获取值

我已经在我的项目中集成了payumoney支付网关，它工作正常，但是我有额外的要求，所以我想传递一个id。我得到的id是这样的“$this->input->post（'id'），并将变量$plan_info分配给它，当用户点击确认按钮时，将其传递到确认页面（查看页面），付款将通过借记/网上银行进行。在成功页面中，我没有获得$plan_info值，但我将传递到确认页面

在控制器中写入的代码

    $product_info = 'testTransaction';
    $customer_name = $this->input->post('customer_name');
    $customer_email = $this->input->post('customer_email');
    $customer_mobile = $this->input->post('mobile_number');
    $id = $this->input->post('id');
    $customer_address = $this->input->post('customer_address');
    $MERCHANT_KEY = "xyz"; 
    $SALT = "xyzxyz";   
    $txnid = substr(hash('sha256', mt_rand() . microtime()), 0, 20);
    //optional udf values 
    $udf1 = '';
    $udf2 = '';
    $udf3 = '';
    $udf4 = '';
    $udf5 = ''; 
    $hashstring = $MERCHANT_KEY . '|' . $txnid . '|' . $amount . '|' . $product_info . '|' . $customer_name . '|' . $customer_email  . '|'. $udf1 . '|' . $udf2 . '|' . $udf3 . '|' . $udf4 . '|' . $udf5 . '||||||' . $SALT; 
    $hash = strtolower(hash('sha512', $hashstring));
    $success = base_url() . 'Success';
    $fail = base_url() . 'Success';
    $cancel = base_url() . 'Success';
    $data = array(
        'mkey' => $MERCHANT_KEY,
        'tid' => $txnid,
        'hash' => $hash,
        'amount' => $amount,
        'name' => $customer_name,
        'productinfo' => $product_info,
        'mailid' => $customer_email,
        'phoneno' => $customer_mobile,
        'address' => $customer_address,
        'action' => "https://test.payu.in", //for live change action  
         https://secure.payu.in
        'sucess' => $success,
        'failure' => $fail,
        'cancel' => $cancel,
        'plan_info'=>$id // This value which is passed to confirm page should get back in payment success response 
    );
    $this->load->view('confirmation', $data);

在视图文件中编写的代码

<div class="card-body">
                    <form action="<?php echo $action; ?>/_payment" method="post" id="payuForm" name="payuForm">
                        <input type="hidden" name="key" value="<?php echo $mkey; ?>" />
                        <input type="hidden" name="hash" value="<?php echo $hash; ?>"/>
                        <input type="hidden" name="txnid" value="<?php echo $tid; ?>" />
                        <div class="form-group">
                            <label class="control-label">Total Payable Amount</label>
                            <input class="form-control" name="amount" value="<?php echo $amount; ?>"  readonly/>
                        </div>
                        <div class="form-group">
                            <label class="control-label">Your Name</label>
                            <input class="form-control" name="firstname" id="firstname" value="<?php echo $name; ?>" readonly/>
                        </div>
                        <div class="form-group">
                            <label class="control-label">Email</label>
                            <input class="form-control" name="email" id="email" value="<?php echo $mailid; ?>" readonly/>
                        </div>
                        <div class="form-group">
                            <label class="control-label">Phone</label>
                            <input class="form-control" name="phone" value="<?php echo $phoneno; ?>" readonly />
                        </div>
                        <div class="form-group">
                            <label class="control-label"> Booking Info</label>
                                    <input class="form-control" name="productinfo" value="<?php echo $productinfo; ?>" readonly />

                                    <input type="hidden" class="form-control" name="plan_info" value="<?php echo $plan_info; ?>"  />
                        </div>
                        <div class="form-group">
                            <label class="control-label">Address</label>
                            <input class="form-control" name="address1" value="<?php echo $address; ?>" readonly/>     
                        </div>
                        <div class="form-group">
                            <input name="surl" value="<?php echo $sucess; ?>" size="64" type="hidden" />
                            <input name="furl" value="<?php echo $failure; ?>" size="64" type="hidden" />  
                            <!--for test environment comment  service provider   -->
                            <input type="hidden" name="service_provider" value="payu_paisa" size="64" />

                            <input name="curl" value="<?php echo $cancel; ?> " type="hidden" />
                        </div>
                        <div class="form-group float-right">
                            <input type="submit" value="Pay Now" class="btn btn-success" />
                        </div>
                    </form> 
                </div>

在$hashstring之前分配$udf1=$id
在$data数组中传递$udf1值

$data=数组（'udf1'=>$id，…）

在查看页面中添加/传递udf1值

在$hashstring之前分配$udf1=$id
在$data数组中传递$udf1值

$data=数组（'udf1'=>$id，…）

在查看页面中添加/传递udf1值

我尝试了你告诉我的，但是在这样做$udf1=$id之后，获取错误校验和错误消息checksum失败；在转换为HashStringPosted value之前，“udf1”在posted value中如何？如果我将值保留在$udf1/$udf2/$udf3/$udf4中，并且当单击“立即付款”时，付款失败并获取“Checksum failed”错误我尝试了您告诉的内容，但获取错误校验和错误消息Checksum失败，在执行此操作后$udf1=$id；在转换为HashStrings之前，过帐值中的“udf1”如何？如果我将值保留在$udf1/$udf2/$udf3/$udf4中，并且当单击“立即付款”时，付款失败并获取“校验和失败”错误