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Old 08-29-2012, 06:36 PM
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Aasixx Aasixx is offline
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Default PHP Code.

Well, I'm using Derpstra's wonderful PHP code (thank you for posting it, Derpstra!) and I was wondering if there was a way to make it where you cannot refresh that page or go back. I'm using this page for when they purchase a certain amount of cash for real money that they're sent to this page to automatically gain their purchased cash. But, I noticed, when you refresh/press go back, they can easily cheat and gain a lot of cash for free. I want to make it where they cannot cheat. Is this possible?

Code:
PHP Code:
<?php

include("functions/functions.php");
include(
"functions/functions_users.php");
include(
"functions/functions_adopts.php");
include(
"functions/functions_friends.php");
include(
"functions/functions_items.php");
include(
"inc/lang.php");
include(
"inc/bbcode.php");

//***************//
// START SCRIPT //
//***************//

$cashname grabanysetting("cost");
$reward1;

if(
$isloggedin == "yes"){
changecash($reward$GLOBALS['username'], $GLOBALS['money']);
$article_title "Hello, {$username}!";
$article_content "You have gained {$reward} {$cashname}.";
}
else{
$article_title "You are not logged in!";
$article_content "You must be logged in to view this page!";
}

//***************//
// OUTPUT PAGE //
//***************//

echo showpage($article_title$article_content$date);
?>
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Old 08-30-2012, 04:52 AM
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Hall of Famer Hall of Famer is offline
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Default

You can use PHP sessions to achieve this. It displays a message saying 'Session Expired' if they click the back or forward button on a page they have already visited.

First of all, you need to define the session var in the purchase page, it should look like this below:

PHP Code:
// In your cash purchase page.
$_SESSION['reward'] = 1
Then unset the session in the money acquisition page:
PHP Code:
// In your actual money reward page
if($isloggedin == "yes" and isset($_SESSION['reward'])){ 
changecash($reward$GLOBALS['username'], $GLOBALS['money']); 
$article_title "Hello, {$username}!"
$article_content "You have gained {$reward} {$cashname}.";
unset(
$_SESSION['reward']); 
}
elseif(
$isloggedin == "yes" and empty($_SESSION['reward'])){
$article_title "An error has occurred"
$article_content "The last session has expired, please return to the previous page.";

else{ 
$article_title "You are not logged in!"
$article_content "You must be logged in to view this page!"

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Old 09-17-2012, 05:15 PM
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Aasixx Aasixx is offline
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Awesome, thanks again HoF!
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Last edited by Aasixx; 09-17-2012 at 05:37 PM.
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