This shortcode is designed to check for the existence of a $_REQUEST variable and, given a value to check, to display the value.
PHP’s $_REQUEST variable is an array that contains all HTTP Request variables: GET, POST and COOKIE.
[ELSE_http_request] conditional branching is NOT supported.
Shortcode nesting is NOT supported.
|var||The name of the $_REQUEST variable for whose existence you are checking.|
Will display the value of $_REQUEST[‘test_request’] if it exists.