解决回调URL页面Session ID频繁变更的问题

<?php
// response.php
include_once "db.te.php";

// 获取Cookie中的ID
if (isset($_COOKIE["my_unique_id"])) {
    $unique_id = $_COOKIE["my_unique_id"];
} else {
    // Cookie不存在，处理错误
    error_log("Cookie 'my_unique_id' not found in response.php");
    exit;
}

// 其他代码...

<?php
// processor.php
session_start();
include_once "db.te.php";

// 生成唯一ID
$unique_id = uniqid();

// 设置Cookie，有效期为30分钟
setcookie("my_unique_id", $unique_id, time() + (30 * 60), "/");

// if (isset($_POST['submit'])) {

date_default_timezone_set('Africa/Nairobi');

$Passkey = 'bfb279f9aa9bdbcf158e97dd71a467cd2e0c893059b10f78e6b72ada1ed2c919';

$Amount= $_POST['amount'];
$BusinessShortCode = '174379';
$PartyA =$_POST['phone'];
$AccountReference =$_POST['name'];
$TransactionDesc = 'test';
$Timestamp =date('YmdHis');
$Password = base64_encode($BusinessShortCode.$Passkey.$Timestamp);
$headers=['Content-Type:application/json; charset=utf8'];
$initiate_url='https://sandbox.safaricom.co.ke/mpesa/stkpush/v1/processrequest';
$callBackURL ='https://c28d-197-231-178-65.ngrok.io/textEditor/response.php';
// ------------------------------

function newAccessToken() {
    $ConsumerKey = 'uhsjjsjbVGatHuJKK';
    $ConsumerSecret = 'Yh29KHAY17LKjahh';
    $credentials = base64_encode($ConsumerKey.":".$ConsumerSecret);
    $url = "https://sandbox.safaricom.co.ke/oauth/v1/generate?grant_type=client_credentials";
    $curl = curl_init();
    curl_setopt($curl, CURLOPT_URL, $url);
    curl_setopt($curl, CURLOPT_HTTPHEADER, array("Authorization: Basic ".$credentials,"Content-Type:application/json"));
    curl_setopt($curl, CURLOPT_HEADER, false);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
    $curl_response = curl_exec($curl);
    $access_token=json_decode($curl_response);
    curl_close($curl);
    return $access_token->access_token;
}

$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $initiate_url);
curl_setopt($curl, CURLOPT_HTTPHEADER, array('Content-Type:application/json','Authorization:Bearer '.newAccessToken()));
$curl_post_data = array(
    'BusinessShortCode' =>$BusinessShortCode,
    'Password' => $Password,
    'Timestamp' => $Timestamp,
    'TransactionType' => 'CustomerPayBillOnline',
    'Amount' => $Amount,
    'PartyA' => $PartyA,
    'PartyB' => $BusinessShortCode,
    'PhoneNumber' => $PartyA,
    'CallBackURL' => $callBackURL,
    'AccountReference' => $AccountReference,
    'TransactionDesc' => $TransactionDesc
);

$data_string = json_encode($curl_post_data);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_POSTFIELDS, $data_string);
$curl_response = curl_exec($curl);

curl_close($curl);

// 在数据库中插入$unique_id
$sql = "INSERT INTO duka (/* 其他字段 */, UniqueId) VALUES (/* 其他值 */, '$unique_id');";
// }
?>

<?php
// response.php
include_once "db.te.php";

// 获取Cookie中的ID
if (isset($_COOKIE["my_unique_id"])) {
    $unique_id = $_COOKIE["my_unique_id"];
} else {
    // Cookie不存在，处理错误
    error_log("Cookie 'my_unique_id' not found in response.php");
    exit;
}

$homepage =  file_get_contents('php://input');
$nowNow = json_decode($homepage);

if ($nowNow->Body->stkCallback->ResultCode==0) {
    $Items = $nowNow->Body->stkCallback->CallbackMetadata->Item;
    foreach($Items as $Item) {
        if ($Item->Name =='MpesaReceiptNumber') {
            $MpesaReceiptNumber = $Item->Value;
        }
    }
}else{
    $ResultCode = $nowNow->Body->stkCallback->ResultCode;
    $MerchantRequestID =  $nowNow->Body->stkCallback->MerchantRequestID;
    $CheckoutRequestID = $nowNow->Body->stkCallback->CheckoutRequestID;
    $ResultDesc = $nowNow->Body->stkCallback->ResultDesc;
    $sql = "SELECT * FROM duka;";

    $stmt = mysqli_stmt_init($conn);

    if (!mysqli_stmt_prepare($stmt, $sql)) {
        echo "SQL statement failed 1!";

    }else{
        mysqli_stmt_execute($stmt);
        $result = mysqli_stmt_get_result($stmt);
        $rowCount = mysqli_num_rows($result);

        // 使用$unique_id作为查询条件
        $sql = "INSERT INTO duka(ResultCode, MerchantReqID, CheckoutReqID, ResultDesc, UniqueId) VALUES (?,?,?,?,?);";

        if (!mysqli_stmt_prepare($stmt, $sql)) {
            echo "SQL statement failed 2!";

        }else{
            mysqli_stmt_bind_param($stmt,"sssss", $ResultCode, $MerchantRequestID,$CheckoutRequestID,$ResultDesc,$unique_id);

            mysqli_stmt_execute($stmt);
        }
    }

}
?>

<?php
include_once "db.te.php";

// 获取Cookie中的ID
if (isset($_COOKIE["my_unique_id"])) {
    $unique_id = $_COOKIE["my_unique_id"];
} else {
    // Cookie不存在，处理错误
    error_log("Cookie 'my_unique_id' not found in fromdb.php");
    exit;
}

//retrieving data from db where UniqueId is equal to this page's UniqueId
$sql="SELECT * FROM duka WHERE UniqueId = '$unique_id';";

$result = mysqli_query($conn, $sql);
$resultCheck=mysqli_num_rows($result);

if ($resultCheck > 0) {

    while ($row = mysqli_fetch_assoc($result)) {
        $data = $row["CheckoutReqID"];
    }
}
//value to be printed using console.log following an ajax get method
echo json_encode($data);
?>