Translations:Help:Extension:ParserFunctions/2384/en
$code0, $code1, or even $code2 will all return $actual if that category page exists (the #ifexist parser function does perform the HTML-decoding of its input parameters);
$code0, $code1, or even $code2 will all return $actual if that category page exists (the #ifexist parser function does perform the HTML-decoding of its input parameters);