How does $_REQUEST work?

Question

PHP

You can explain how $_REQUEST works to the teapot, in simple language. and @$_REQUEST - what does it mean?

Answer 1

Using it, you can get the value of the variables received during the GET / POST request. They are immediately in the same $_REQUETS array, and not in $_GET and $_POST separately. And it also contains $_COOKIE.
It is better to use it when you need 2 out of 3 variables in one place in the code