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Unregister Globals Function

/ Published in: PHP
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Emulate Register Globals being Off when you can't (or don't want to) change php.ini for your entire site

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  1. function unregister_globals() {
  2.  
  3.     if (ini_get('register_globals') == 0) {
  4.        return;
  5.     }
  6.  
  7. // Save the existing superglobals first
  8.     $REQUEST = $_REQUEST;
  9.     $GET = $_GET;
  10.     $POST = $_POST;
  11.     $COOKIE = $_COOKIE;
  12.  
  13.     if (isset($_SESSION)) {
  14.         $SESSION = $_SESSION;
  15.     }
  16.  
  17.     $FILES = $_FILES;
  18.     $ENV = $_ENV;
  19.     $SERVER = $_SERVER;
  20.  
  21. // Unset the $GLOBALS array (clear all)
  22.     foreach($GLOBALS as $key => $value) {
  23.         if ($key != 'GLOBALS') {
  24.             unset($GLOBALS[$key]);
  25.         }
  26.     }
  27.  
  28. // Re-assign the saved superglobals again
  29.     $_REQUEST = $REQUEST;
  30.     $_GET = $GET;
  31.     $_POST = $POST;
  32.     $_COOKIE = $COOKIE;
  33.  
  34.     if (isset($SESSION)) {
  35.         $_SESSION = $SESSION;
  36.     }
  37.  
  38.     $_FILES = $FILES;
  39.     $_ENV = $ENV;
  40.     $_SERVER = $SERVER;
  41. }

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