The scenario as i understood from your image and your codes is:

You have a form.
You filled the form and gave the post request to localhost/ussd/index.php.
Your code filters the data and sends the request tohttp://localhost:7000/ussd/send with additional data.
The simulator gets the data and displays.

For this scenario you first need to have a form and i am creating forms adding Laravel Collective to use the {!! !!}.

You also can use it by following this docs:

https://laravelcollective.com/docs/5.3/html

form.blade.php

{!! Form::open(['url' => 'ussd.store']) !!}
    {!! Form::input('applicationId') !!}
    {!! Form::password('password') !!}
    {!! Form::input('sessionId') !!}
    {!! Form::input('sourceAddress') !!}
{!! Form::Close() !!}

You also need to create the route for this action as:

routes.php

Route::resource('ussd', 'UssdController');

I am using store method but since you are not storing the data you could send request to any post method.

UssdController.php

use GuzzleHttp\Client;

class UssdController extends Controller
{
    public function store(Request $request)
    {
        $data = [];
        $data["message"]='We  Display This in Phone Screen';
        $data["applicationId"]=$request["applicationId"];
        $data["password"]=$request["password"];
        $data["version"]="1.0";
        $data["sessionId"]=$request["sessionId"];
        $data["ussdOperation"]="mt-cont";
        $data["destinationAddress"]=$request["sourceAddress"];
        $data["encoding"]="440";
        $data["chargingAmount"]="5";

        $client = new Client(['base_uri' => 'http://localhost:7000/']);
        $response = $client->request('POST', 'ussd/send', $data);
        return $response->getBody();
    }
}

I suppose the http://localhost:7000 is your different application where i am sending the POST data.

You can use GuzzleHttp to send the request to the different application. To install guzzlehttp use:

composer require guzzlehttp/guzzle

I don't know what you will do after send the data to the simulator, but it should work with some tweaks.

To know more about guzzleHttp you could follow this docs:

http://docs.guzzlephp.org/en/latest/

如何在Laravel中获取和发送Json字符串？

dream5694

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