Android Question Hello, I am sending a value to a php file via the $_POST function and I am receiving an error

AlfaizDev · Sep 7, 2023

Hello, I am sending a value to a php file via the $_POST function and I am receiving an error
When I use the $_Get function it works fine
But the problem is when changing to the $_POST function
Although he was working a while ago
This is a test page for that
Thank you all
I tried a lot of solutions and it didn't work for me

b4a:

Private Sub SwiftButton1_Click
    
    Dim resJob As String
    Dim server As String="https://www.alfaiz678.com/test.php"
    
    Dim JobX As HttpJob
    JobX.Initialize("JobX", Me)
    
    JobX.PostString(server, _
     "action=B4X Simple, powerful and moderndevelopment tools." )
'    
'    JobX.Download2(server, _
'     Array As String ("action","B4X Simple, powerful and moderndevelopment tools." ))

    JobX.GetRequest.Timeout=15000
    
    Wait For (JobX) JobDone(j As HttpJob)
    If j.Success Then
        
        resJob = J.GetString
        Log("Response from server: " & resJob)        
        'xui.MsgboxAsync(resJob,"")
    End If
    j.Release

End Sub

php:

<?php

//if(isset($_GET['action']))
if(isset($_POST['action']))

{
 //   $action = $_GET['action'];
    $action = $_POST['action'];
    echo $action;
}

else

{
    echo "Index is empty";
}



?>

The result with the $_GET function

B4X:

Response from server: B4X Simple, powerful and moderndevelopment tools.

Result with $_POST function

b4a:

Response from server: Index is empty

DonManfred · Sep 7, 2023

B4X:

Private Sub Button1_Click
    Dim resJob As String
    Dim server As String="https://www.alfaiz678.com/test.php"
    
    Dim JobX As HttpJob
    JobX.Initialize("JobX", Me)

    Dim m As Map = CreateMap("action":"B4X Simple, powerful and moderndevelopment tools.")
    
    JobX.PostMultipart(server, m,Null)
    JobX.GetRequest.Timeout=15000
    Wait For (JobX) JobDone(j As HttpJob)
    If j.Success Then
      resJob = J.GetString
        Log("Response from server: " & resJob)
    End If
    j.Release
End Sub

Logger connected to: samsung SM-G973F
--------- beginning of main
*** Service (starter) Create ***
** Service (starter) Start **
** Activity (main) Create (first time) **
*** mainpage: B4XPage_Created
*** mainpage...

aeric · Sep 7, 2023

alfaiz678 said:
$_POST

I think it expects values come from form action.

How about:

PHP:

$action = file_get_contents("php://input");

aeric · Sep 7, 2023

I tried your code, it actually works at my side (if i remove the isset).

use:

PHP:

if(!empty($_POST['action']))

AlfaizDev · Sep 7, 2023

aeric said:
I tried your code, it actually works at my side (if i remove the isset).

use:

PHP:

if(!empty($_POST['action']))

I also tried that before to no avail
The same result appears

Index is empty

AlfaizDev · Sep 7, 2023

thanks a lot for your help
The link on the browser still does not work
Still showing the same result
But when I try this code on b4a it works fine
The important thing is that it works on b4x
Thank you

B4X:

JobX.PostMultipart(server, CreateMap("action":"B4X Simple, powerful and moderndevelopment tools."), Null )

https://www.b4x.com/android/forum/threads/cant-use-file_get_contents-php-input.63158/post-399498

DonManfred · Sep 7, 2023

B4X:

Private Sub Button1_Click
    Dim resJob As String
    Dim server As String="https://www.alfaiz678.com/test.php"
    
    Dim JobX As HttpJob
    JobX.Initialize("JobX", Me)

    Dim m As Map = CreateMap("action":"B4X Simple, powerful and moderndevelopment tools.")
    
    JobX.PostMultipart(server, m,Null)
    JobX.GetRequest.Timeout=15000
    Wait For (JobX) JobDone(j As HttpJob)
    If j.Success Then
      resJob = J.GetString
        Log("Response from server: " & resJob)
    End If
    j.Release
End Sub

Logger connected to: samsung SM-G973F
--------- beginning of main
*** Service (starter) Create ***
** Service (starter) Start **
** Activity (main) Create (first time) **
*** mainpage: B4XPage_Created
*** mainpage: B4XPage_Appear
** Activity (main) Resume **
*** Receiver (httputils2service) Receive (first time) ***
Response from server: B4X Simple, powerful and moderndevelopment tools.

aeric · Sep 7, 2023

alfaiz678 said:
I also tried that before to no avail
The same result appears

Index is empty

I can't believe. Nevermind.

AlfaizDev · Sep 7, 2023

aeric said:
I can't believe. Nevermind.

DonManfred · Sep 7, 2023

aeric said:
How about

$action will contain more/other things than you expect.
It isn´t an Array.

aeric · Sep 7, 2023

alfaiz678 said:
View attachment 145621
View attachment 145622

You are calling from browser!
NOT B4A

AlfaizDev · Sep 7, 2023

aeric said:
You are calling from browser!
NOT B4A

From within b4x it is working now
I just sent you pictures
Because you said you couldn't just believe me
to see

But from inside b4x it works

B4X:

Waiting for debugger to connect...
Program started.
Call B4XPages.GetManager.LogEvents = True to enable logging B4XPages events.
server : https://www.alfaiz678.com/test.php
Response from server: B4X Simple, powerful and moderndevelopment tools.

B4J

DonManfred · Sep 7, 2023

alfaiz678 said:
I also tried that before to no avail

echo what you get from

B4X:

file_get_contents("php://input");

to get an insight of what is there. write it to a log file for example. or just echo it.

aeric · Sep 7, 2023

alfaiz678 said:
From within b4x it is working now
I just sent you pictures
Because you said you couldn't just believe me
to see

But from inside b4x it works

B4X:

Waiting for debugger to connect... Program started. Call B4XPages.GetManager.LogEvents = True to enable logging B4XPages events. server : https://www.alfaiz678.com/test.php Response from server: B4X Simple, powerful and moderndevelopment tools.

You should understand what is GET vs POST, job.Download vs job.PostString
If you use browser to open the URL, it only make GET request, it can't make POST request, if you want to test in PC, you need to use Postman

edit: Unless you use Form tag and submit button

AlfaizDev · Sep 7, 2023

aeric said:
You should understand what is GET vs POST, job.Download vs job.PostString
If you use browser to open the URL, it only make GET request, it can't make POST request, if you want to test in PC, you need to use Postman

edit: Unless you use Form tag and submit button

Thanks
I did not know this information

AlfaizDev · Sep 7, 2023

I am not good at using php
I use it only when I need to connect my applications to the server

Android Question Hello, I am sending a value to a php file via the $_POST function and I am receiving an error

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