Register globals what is

While it doesn't guarantee that data has not been forged, it does require an attacker to guess the right kind of forging. See also the manual section on using variables from external sources. Example 3 Detecting simple variable poisoning. Asked 8 years, 11 months ago. Active 5 years, 11 months ago. Viewed 27k times. You may ; want to turn this off if you don't want to clutter your scripts' global scope ; with user data.

As they are deprecated, we obviously don't ; recommend you use them. They are on by default for compatibility reasons but ; they are not recommended on production servers. These arrays are extremely ; useful when running scripts from the command line.

When this directive is ; enabled, registering these variables consumes CPU cycles and memory each time ; a script is executed. For performance reasons, this feature should be disabled ; on production servers.

If these variables ; are not used within a script, having this directive on will result in a ; performance gain. Improve this question. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Podcast Explaining the semiconductor shortage, and how it might end. Does ES6 make JavaScript frameworks obsolete? Featured on Meta. Now live: A fully responsive profile. Linked 0. See more linked questions.

Related Hot Network Questions. Question feed. Stack Overflow works best with JavaScript enabled. You have a couple of options in this case. Possibly the easiest thing to do, is to ask your hosting provider to make this change for your domain. Often, this is accomplished by logging a technical support request. But not all providers will make this change for you. So you may not be so lucky. The good news is that there are likely other options available to you, and here are some of them.