Possible Duplicate:
Does $_REQUEST have security problem?
Does anyone have verifiable citations on this? What would be the roundabouts for the security holes?
Possible Duplicate:
Does $_REQUEST have security problem?
Does anyone have verifiable citations on this? What would be the roundabouts for the security holes?
Here is a small post that you can read about why:
http://devlog.info/2010/02/04/why-php-request-array-is-dangerous/
From that page:
Question: Why is $_REQUEST insecure?
Answer: Because it combines COOKIE as well as GET and POST, and the COOKIE data always takes precedence creating the possibility for dangerous "sticky" variables.