Retrieves the revision level of the CGI specification to which this server complies. This variable is not request-specific; it is set for all requests.
Returns the revision level as a string in the format CGI/revision
.
As information output on a page or to a log:
GATEWAY_INTERFACE=CGI/1.1
As part of an Idoc Script statement or evaluation:
<$if GATEWAY_INTERFACE$> <!--statement-->