Any PHP programmers here that know of ClickBank?

by behnampmdg3

Posted: 9 years ago 3 replies

PROGRAMMING

hi;

I am setting the pitch flow links but I get Notice unknown $REQUEST['cbf']
<?php echo $_REQUEST['cbf'];?>

href="http://2.xxxx.pay.clickbank.net/?cbur=d&cbf=<?php echo $_REQUEST['cbf'];?>"

If I do this the warnings go way

PHP Code:

  <?php if(!isset($_REQUEST['cbf']))
  {
    $_REQUEST['cbf']="";
  }?>

Is it how its supposed to be? I thought CB takes care of it. Unless I'm wrong.

#clickbank #php #programmers

emptee 9 years ago

Looks fine to me - though it would be more accurate to omit the parameter all together if it isn't passed to your script.
- Thanks
- 1 reply
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- MarketingWithArthur 9 years ago
  
  Hi,
  
  I decided to write a longer post, because it may be useful to other people.
  
  1. You can report all errors and disable only NOTICE.
  Add this code on top:
  error_reporting(E_ALL ^ E_NOTICE);
  
  2. Your code is vulnerable to Cross-Site Scripting attack. Never place unescaped directly into the source code of the page.
  
  - How to correctly filter special characters?
  We can use functions such as, for example: htmlspecialchars() or/and strip_tags() also it is good to use addslashes() (prevent SQL Injection attack).
  
  Code using the above function will look like this:
  
  Code:
  
  <?php $cbf = addslashes(htmlspecialchars(strip_tags($_GET['cbf']))); if(!isset($cbf)) { $cbf=""; } ?> <a href="http://2.xxxx.pay.clickbank.net/?cbur=d&cbf=<?php echo $cbf;?>">text</a>
  
  Of course - in most cases - you only need to addslashes() and htmlspecialchars() ;-)
  
  If you will need some help - please write ;-)
  
  Best Regards,
  Arthur
  
  References (if you want read more about it):
  * https://www.owasp.org/index.php/Cros...ting_%28XSS%29
  * https://www.owasp.org/index.php/SQL_Injection
  
  Thanks
  
  1 reply
  
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  behnampmdg3 9 years ago
  
  Thanks Arthur.
  
  I use Codeigniter's html_escape.
  
  You'd think CB tell you about this.
  
  Good point though
  
  Thanks
  
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Any PHP programmers here that know of ClickBank?

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