Question

我正在用php开发USSD菜单，该菜单旨在用作多级菜单结构是这样的：

用户拨打* 2000 * 22＃时显示例如：

家庭用品
电子设备
退出。

当用户回复“ 1”时，将显示“家庭用品”子菜单，如下所示： 1.沙发 2.割草机

我的问题是，如果用户再次选择“ 1”，如何显示“ 1. Couch”的第二个子菜单。下面是我的代码：

 $ussdRequest = json_decode(file_get_contents('php://input'), true);
    $obj = json_decode($json);
    $timestamp   = $ussdRequest["timestamp"];
    $sessionId   = $ussdRequest["sessionId"];
    $serviceCode = "*2000*22#";
    $phoneNumber = $ussdRequest["MSISDN"];
    $cpId = $ussdRequest["cpId"];  
    $cpPassword = $ussdRequest["cpPassword"];
    $opType = $ussdRequest["opType"];
    $msgCoding = $ussdRequest["msgCoding"];
    $ussdContent=$ussdRequest["ussdContent"];


      //Display main menu


    $response  = "Reply with: \n";
    $response .= "1. Household Items \n";
    $response .= "2. Electronic Devices \n";
    $response .= "3. Exit \n";

    $date = new DateTime($date, new DateTimeZone('UTC'));
    $newtimestamp = $date->format('YmdHmsn');



    $cpPassword2 = "7809834";
    $hashparams = $cpId.$cpPassword2.$newtimestamp;
    $hashpasswd = md5($hashparams);

    $data = [ "sessionId" => $sessionId, "cpId" => $cpId,"cpPassword" =>$hashpasswd,"serviceCode"=>$serviceCode,"msgType"=>1,"opType"=>$opType,"msgCoding"=>$msgCoding,"ussdContent"=>$response,"timeStamp"=>$newtimestamp,"MSISDN"=>$phoneNumber];

    $ussdc = $ussdContent;


switch($ussdc){
      // if the user responds with "1" the ussd content shows menu below
      case "1": 
          $response2  .= "1. Couch \n";
          $response2  .= "2. Lawn mower\n";

    $data2 = [ "sessionId" => $sessionId, "cpId" => $cpId,"cpPassword" =>$hashpasswd,"serviceCode"=>$serviceCode,"msgType"=>1,"opType"=>1,"msgCoding"=>$msgCoding,"ussdContent"=>$response2,"timeStamp"=>$newtimestamp,"MSISDN"=>$phoneNumber];

    //API URL


$url = '58.278.901.54:8581/push_ussd';
    //create a new cURL resource
    $ch = curl_init($url);

    $decoded_data = json_encode($data2);

    //attach encoded JSON string to the POST fields
    curl_setopt($ch, CURLOPT_POSTFIELDS, $decoded_data);

    //set the content type to application/json
    curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type:application/json'));

    //return response instead of outputting
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

    //execute the POST request
    $result = curl_exec($ch);



  break;




//API URL
$url = '58.278.901.54:8581/push_ussd';
//create a new cURL resource
$ch = curl_init($url);

$decoded_data = json_encode($data);

//attach encoded JSON string to the POST fields
curl_setopt($ch, CURLOPT_POSTFIELDS, $decoded_data);

//set the content type to application/json
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type:application/json'));

//return response instead of outputting
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

//execute the POST request
$result = curl_exec($ch);
if ($result === FALSE) {
    echo curl_error($ch);
    //ini_set("error_log", "/tmp/php-error.log");
    exit();
}
//close cURL resource
curl_close($ch);
 $response = [ "sessionId" => $sessionId, "msisdn"=>$phoneNumber,"errorCode"=>"200","errorMsg"=>"Success"];
header('Content-type: application/json');
echo json_encode($response);


?>

Answer 1

您可以根据用户选择的菜单使用关系来获取相关项目。

Answer 2

对于USSD，我们有等级。我们检查拨号器能够知道的级别在哪个菜单上。这是你应该怎么做初始化$parts和$level

        $text = $_POST['text'];//this is text the user has dialed

        $level = 0;
        $parts = [];

        if(strlen($text) == 0 ) {

            $level = 0;

        } else {

            $parts = explode("*", $text);
            $level = count($parts);
        }

用户首次拨打代码

if ($level == 0){
   //Display main menu
    $response  = "CON Reply with: \n";
    $response .= "1. Household Items \n";
    $response .= "2. Electronic Devices \n";
    $response .= "3. Exit \n";
}

用户第二次拨打菜单

elseif($level == 1){
  //get the number he dialed
if ($parts[0] == 1){

//Display menu
    $response = "CON 1. Couch\n";
    $response .= "2. Lawn mower";

}elseif ($parts[0] == 2){

//Display other menus and so on
}else{
//bla bla
}

用户第三次拨打菜单

elseif($level == 2){
  //get the number he dialed
if ($parts[0] == 1){

//Display menu
    $response = "CON 1. Couch";

}elseif ($parts[0] == 2){

//Display other menus and so on
}else{
//bla bla
}

希望有帮助。如有任何疑问，请随时提问

在PHP中创建USSD Mutilevel菜单

2 个答案: