register_globals

Hello,

regarding to http://www.webdigity.com/index.php?action=tutorial;code=39 I wanted to mention that there are some other possibilities to "emulate" an enabled register_globals.

Code:

<?php
 foreach ( $_REQUEST as $k => $v )
 {
   eval ( "\$$k = '$v';" );
 }
?>

<?php
  foreach ($_REQUEST as $key => $value)
  {
     $$key = $value;
  }
?>

<?php
  extract($_REQUEST);
?>

register_globals stores $_REQUEST (not just $_GET) in variables.

Best regards,
Tim

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Interesting, I didn't know the extract() function. Thanks for the heads up

And welcome to webdigity

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and how about this duplication thing you have to fight with register_globals = on?

$var
$_GET['var']
$_POST['var']
$_COOKIE['var']

or just $_REQUEST['var']

and there is still
session_register('var')



I think its easier to work with register_globals = off

(I hate every moment I used to create scripts working with register_globals = on)

...and welcome to webdigity redredred

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Yeah right, with no registered globals is much better. I had posted this tutorial just for Meth0d who wanted registered globals and his host didn't had this directive on.

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Yeah right, with no registered globals is much better. I had posted this tutorial just for Meth0d who wanted registered globals and his host didn't had this directive on.

I know

Thank you! I think the best way is to have register_globals deactivated. extract() can make sense if you need a template engine which can interpret PHP code.

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In most cases you need to validate data for mysql queries. So I guess you will need to do something like :

$id = (int) $_GET['id'];?>

On the other hand if you are using registered globals, the order that the variables are registered (get, post, etc.) can be different in different hosts and that can be a huge headeache

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