PHP include() issues

Let's say I want to know if the file is already included or not,
what are my options?

I do not want to use the include_once() or require_once()*

hmmm ..... I know maybe I define() a CONSTANT in the included file and check
if that CONSTANT with defined()?

any other alternatives? better ones?

if the file is included, then do this and this
if not then do that and that..

That would be the easiest way. I believe phpBB uses this technique to prevent access to non-executable scripts (config files, etc).

http://www.php.net/get_included_files

Most people browse the net looking for porn, I browse the PHP manual looking for obscure function names to memorize.

hmmmm I see.

I'll give it a try ^^

thanks.