What is the difference between $_REQUEST and $_POST|$_GET in PHP? ?

What is the difference between $_REQUEST and $_POST|$_GET in PHP? ? Please ask the gods for answers

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What is the difference between $_REQUEST and $_POST|$_GET in PHP? ? Please ask the gods for answers

$_REQUEST[] has the functions of $_POST[ ] $_GET[ ], but $_REQUEST[ ] is slower. All data submitted via POST and GET methods are available through the $_REQUEST array

$_REQUEST can get the content in $_POST, $_GET, $_COOKIE.
When $_POST, $_GET, $_COOKIE exist at the same time. $_REQUEST can only get one of the values. The priority is: get $_POST first, then $_GET, and finally $_COOKIE.