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Web Script Needed to Generate Registration Code

I need a PHP or CGI script that will create a page and a random registration code for a software program that I had written. The code is 16 digits and is made up of letters and numbers. The first 4 and last 4 digits are to be pulled at random from a file named rannum.txt, the 8 digits in the middle should be random, it doesn't matter what they are as long as they are a random number or letter.

The rannum.txt file is in the following format&

AXDF
A2LR
R889
Z0L3

I am sending the person to the following URL, this is an example

www.myurl.com/code.php?address@email.com

The page that is generated should look like this, I'll edit the text to match what I need it to say later. The main part is that their email address should be on the page as well as the 16 digit number

-----

Thank You

Please use the following to register your program

address@email.com

[16 digit random code here]

-----

I would also like the URL to not display the ? and the email address if at all possible once the page loads. If they try to access the page directly without using the ?address@email.com, I would like to have the script leave them with the following message. I'll edit the message later to suit my needs.

The code did not generate. Please contact me for additional help with this
0
timshank
Asked:
timshank
1 Solution
 
wildzeroCommented:
Here you go
www.myurl.com/code.php?e=address@email.com
Notice the extra bit there, e=

rannum.txt goes in the same folder as code.php

It uses sessions to keep track of generated code and email when removing the email from the url. This means for as long as the session is open it will continue to display there code and email when they return.

To remove this simply change the bottom of the file from
      <?php }
?>
to
      <?php }
session_destroy();
?>

<?php
	session_start();
	
	If (isset($_GET['e'])) {
		//Load in the random text file to an array
		$file = file('rannum.txt');
		
		$code = trim($file[rand(1,count($file))-1]);
		$code.= rand(1000,9999);
		$code.= trim($file[rand(1,count($file))-1]);
		
		//Set the code and email to session 
		$_SESSION['code'] = $code;
		$_SESSION['email'] = str_replace(array('<', '>', '/', '\/', '%'), '', $_GET['e']);		
		header("Location: /code.php");
		exit;
	}
	
	
	If (isset($_SESSION['code'], $_SESSION['email'])) {
	?>
		
		<p>Thank You</p>
 
		<p>Please use the following to register your program</p>
 
		<p><?php echo $_SESSION['email']; ?></p>
 
		<p><?php echo $_SESSION['code']; ?></p>
 
	<?php
	} else {
	?>
	
	<p>The code did not generate. Please contact me for additional help with this</p>
	
	<?php }
?>

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0
 
timshankAuthor Commented:
Excellent Job. Thank You!
0

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