how to stop URL vars from overriding PHP vars?!

acidbox

I have a simple question.

I have a script that changes a var that is sent via a URL to a different value and I need to know how to make the URL var stop overriding the value of the new var. For instance,

http://www.yoursite.com/?color=blue

Now, in the script.

if ($color == "blue") {
$color = "red";
}

I dont know why, but color always = blue if it is passed in the command line. I tried using unset($color); But that did not work. Any ideas?

diego25

In your php.ini turn your register_globals to Off and PHP will not convert query string variables into global variables (i.e. $color). If you turn register_globals off, you'd use $HTTP_GET_VARS or $_GET array to get the URL variables.

Diego

altexis

This type of bug sounds familiar...

check if the $color variables changes again in your code!!

check if the code flow gets into any forgotten functions which change $color back to blue

acidbox

I don't want to turn the globals off because 9 times out of 10 I want to keep the URL passed variables. However, in this one instance, I would like to override what is passed from the browser. Any ideas?