=over 22
-=item $ENV{PLP_NAME}
+=item $ENV{SCRIPT_NAME}
The URI of the PLP document, without the query string. (Example: C</foo.plp>)
-=item $ENV{PLP_FILENAME}
+Used to be renamed to C<$ENV{PLP_NAME}>, which is still provided but deprecated.
+
+=item $ENV{SCRIPT_FILENAME}
The filename of the PLP document. (Example: C</var/www/index.plp>)
+C<$ENV{PLP_SCRIPT}> also still provided but deprecated.
+
=item $PLP::VERSION
The version of PLP.