[Resolved] Hidden Fields Question

ComputerNerd888

Hi,

I have a question. I see in this book I am reading that he has a rand number that he needs ever time the project talks to the server so he puts it into a hidden Field but he dose it at the end of the code. When the program talks back to the server he uses that var before the hidden field. So what my question is dose PHP put the value of the vars before running the rest of the programs script. I am new at this so this newbie question is dumb I know but I need to know this.

Thanks,
Andrew

Mordecai

Originally posted by ComputerNerd888
So what my question is dose PHP put the value of the vars before running the rest of the programs script.

I understood most of it except this, and this seems to be the most important line. Are you asking where they are stored, how they are stored, when they are stored, or what?

ComputerNerd888

OK I have tryed a bunch of stuff but nothing works. I need to store a number that was randomly created. A number that is increased every time a guess is made and that guess so I was going to put them in a hidden Field sense that is the only way to do it other than a database etc.

But I cant get it to work. so i was wondering how PHP did it if I put the <input type ="hidden"> at the end of the code will the name used be given the value given in the <input> command before the code is run?

Thanks,
Andrew

Mordecai

If you have <input type="hidden" name="myfield">, you won't have a $myfield variable, but you will have a $_GET["myfield"] variable at runtime.

Is that what you're asking? If it's a problem between $myfield and $_GET["myfield"], just change register_globals.

ComputerNerd888

I know about register_globals and it is on.

Andrew

Weedpacket

Originally posted by ComputerNerd888
But I cant get it to work. so i was wondering how PHP did it if I put the <input type ="hidden"> at the end of the code will the name used be given the value given in the <input> command before the code is run?

One thought occurs to me - is this in a form that gets submitted? I can't be bothered checking right now, but I don't see how input fields will get submitted without a genuine submission.

Your description sounds like this person you read about is trying to set up some sort of session ID thing (the "rand number" would be inserted by the client into the request headers it sends to the server).

ComputerNerd888

Hi,

Yes sort of. In the program that he is using he has:

function printstuff() {

global $cash, $secondRoll;

print "Cash: $cash\n";

//Store Variables In Hidden Fields

print <<<HERE

<input type = "hidden"
           name = "secondRoll"
           value = "$secondRoll">

<input type = "hidden"
           name = "cash"
           value = "$cash">

HERE;
}

This works in his program but I cant get this to happen when I do it. but that snippet is at the end of the code but I just saw now thats in a function that gets called in the start but I still don't get ow the $cash var gets printed out because the $cash dose not get its correct value until after it is printed so my question is that dose the vars get its value than every thing else you run?

Thanks,
Andrew