When to you use $_REQUEST[ ] array in php..?

If data is being sent to you, but it could come in multiple ways (for example, both GET and POST), you can use the $_REQUEST[ ] array rather than querying the others, reducing your chances of error.

hi................
Contains all variables sent via HTTP GET, HTTP POST, and HTTP cookies.
This is basically the equivalent of combining $_GET, $_POST, and $_COOKIE, and is less dangerous than using $GLOBALS. However, as it does contain all variables from untrusted sources (that is, your visitors), you should still try to steer clear unless you have very good reason to use it. There's no equivalent to $_REQUEST in versions of PHP before v4.1.

Thaks

T. Saravanan