How to pass a variable from one app to another?

I use the RUN command. Typically I have a main program where the user signs in. Based on their sign in they are presented with their menu. Each user gets different options based on their login. The menu gives them the option to simply look at data or maintain it. After they finish the RUNNED program they go back to the menu program. The menu program is the only place they can exit the system...
Hope this helps..
Dan

Let's say, for example, I have program 1 and program 2. I want to link a user who is logged in on program 1 to program 2 and I don't want them to have to log in again to use certain features that require login

I can't find anything on processing forms. It would be easy to pass a secret variable using a hidden field in a form if you have a way of processing the form after you submit it.

Thank you for replying meerkat.

This is the only thing I can find about UserInfo$ in the RB documentation -> UserInfo$ - This is information about the user's web browser.

What I need is to pass a variable, preferably a string, but I could make a number work if I had to. The purpose is to identify the users username. Each registered user will have a directory of their own with a small profile and within this directory will be all of their contributions to the website (a local community website with information about events, local history etc. along with a classified ads section). There will be many sections of the site and each section will be different, hence different apps for each section of the site.

What I want to do is make it so that a user can login in any of these sections and when they go to another section they will still be identified in case they want to contribute something to that section or place an ad in the classifieds. This will be a huge project. Right now I'm just working on "building block" pieces of code that I will need when I actually start making the website. Part of the planning stage along with the learning curve. If you know a way I can send a username from one RB program to another using RUN and UserInfo$ that would help me immensely.

As for using a form with a hidden value, I basically know how to create a form, but the only way I know how to get the information from the form from one page (or program) to another is using PHP. I know a little bit of PHP, but I don't want to use PHP or Java script. I prefer to use BASIC. As I say, I know a little about PHP but I know nothing about Java script so with a Java script example I would need a lot of explanation. In PHP all I need is a simple form with the ACTION of sending it to another page for processing. There I could process the values or the input content of the fields in the form. Very simple, but this is RunBASIC, not PHP. For security reasons it's important that this variable not be visible in the address bar. But if that's the only option then I could work around that by encrypting the username so that a hacker wouldn't know what it was.

If a username can be passed using UserInfo$ that would be all I would need because I could then get any other information I need about the user from their profile directory which would be named 'username'.
I think I downloaded this language at one time. I think I got the info from one of your posts as a matter of fact. I have an Android tablet that my wife used to use, but now I use it mainly for experiments like trying things like RFO-Basic. It seems pretty cool, but I really hate the Android system and I'm stuck on the idea of using RunBASIC in Linux. Especially since I've found a way to get a TEXTAREA to wordwrap, something that kept me from beginning to do any real developing on RB for years. I really needed that feature and now I know a way to have it. So once again I'm beginning to work on the basic building blocks I'll need to create my site. Once I work out a couple more kinks I will begin actually constructing the site and then I will be wanting to download the paid version so I can start testing it on various devices, probably through a home RB network at first and then eventually on the internet.

Now I need a way to pass variables from one RB app to another. I can work around a lot of things, but there are some things I really need to be able to do in order to create the local community website I would love to make. I doubt if I'll ever do it in PHP because I still have a lot to learn about how to use that language and I don't want to spend that much time learning. Anyway I find the PHP language a little weird and hard to learn. With RunBASIC the learning curve for me will be immensely shorter because I already know how to do most of it (with the help of the documentation and this forum). I've written a lot of programs in Just BASIC and Liberty BASIC, so much of it is second nature for me.

If you can help I would be very grateful. Just a simple program 1 code to send a variable to program 2, and then another simple program 2 code that prints the result is all I would need. The documentation gives me almost zero information about how to use UserInfo$. To me it just looks like it will only give browser info like "Mozilla Firefox" etc. There are no examples or explanations in the documentation and the only other source of info I'm aware of is this forum. And I can't find any examples or details about how to process forms in the documentation or in a forum search either. If you search the word "forms" in the documentation you basically get nothing. The same with this forum. There's one or two references, for example apparently POST has something to do with processing forms and there's something in there called GET$ or get? but again, no details about how it's used or any examples to learn from.

I would have been asking these questions years ago but I was hung up on not being able to have a TEXTAREA that would wordwrap and couldn't get any information or examples that actually worked for me. But I keep coming back to RB because I love the concept of making web apps in BASIC so much.

Not sure why you would like to have a hidden secret variable since you can pass it in UserInfo$. Anyway HTML lets you hold hidden values as described here; Hidden Values
Example;
city$ = "New York"
html "<input type='hidden' name='city' id='city' value='";city$;"' size=22/>" ' the hidden value
city$ = #request get$("city") ' get the hidden value
Change the value anytime with; html "<script> document.getElementById('";city;"').value = '";newCity$;"';</script>"


If you are having problems with your code, give me more detail of what you want to do and I can give you the code. It looks like what you are trying to do is not unusual..

I'm a little rusty with RB. I code mostly in RFO-Basic now. RFO runs on Android and Fuchsia. I always think it's kind of amusing knowing my web server is on my phone in my pocket.

Hope this helps.
Dan

Runtime Error in program 'Pass value 1': run "Pass value 2"
Message not understood: #identifier

Also, what does "size=22/" do?

I tried it and it worked. You don't happen to have a cls command somewhere? If you do it will clear a html including <input"

Here is a "simple" example of using a session ID to handle user information.
It uses a text file, but you can also use a SQLite database.
The session ID should be a more complex one to better distinguish between the many user sessions.
Publish program2 to be able to use this example.

The main program or login page:

' program1
print
print "Enter User Name: ";
textbox #username, ""
print
print "Enter Password: ";
passwordbox #password, ""

print
print
link #doAction, "Continue", [doAction]

#username setfocus()
wait

[doAction]
userName$ = #username contents$()
passWord$ = #password contents$()

sessionID$ = "my_md5_hash"

open sessionID$; ".txt" for output as #txt
#txt "userName="; userName$
#txt "passWord="; passWord$
close #txt

html "</br></br><a href='?app=program2&sid="; sessionID$; "' target='_blank'>Next</a>"
end


The start for one of the sections:

' program2
print
print "UrlKeys$: "; UrlKeys$

i = 1
while word$(UrlKeys,ドル i, "&") <> ""
urlKey$ = word$(UrlKeys,ドル i, "&")
option$ = word$(urlKey,ドル 1, "=")
value$ = word$(urlKey,ドル 2, "=")

if option$ = "sid" then
sessionID$ = value$
end if

i = i + 1
wend

print
print "sessionID$: "; sessionID$

open sessionID$; ".txt" for input as #txt
while not(eof(#txt))
line input #txt, theLine$

option$ = word$(theLine,ドル 1, "=")
value$ = word$(theLine,ドル 2, "=")

select case option$
case "userName"
userName$ = value$

case "passWord"
passWord$ = value$
end select
wend
close #txt

print
print "userName$: "; userName$
print "passWord$: "; passWord$
end