Among $_REQUEST, $_GET and $_POST which one is the fastest?

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$_REQUEST, by default, contains the contents of $_GET, $_POST and $_COOKIE.

But it’s only a default, which depends on variables_order ; and not sure you want to work with cookies.

If I had to choose, I would probably not use $_REQUEST, and I would choose $_GET or $_POST — depending on what my application should do (i.e. one or the other, but not both) : generally speaking :

  • You should use $_GET when someone is requesting data from your application.
  • And you should use $_POST when someone is pushing (inserting or updating ; or deleting) data to your application.

Either way, there will not be much of a difference about performances : the difference will be negligible, compared to what the rest of your script will do.

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