getting ip behind proxy

Hello

I am trying to use this script

to know if the ip visitor is behind a proxy .

This script seems very good because it shows
$proxy : [1] if visitors is behind a proxy or $proxy : [] if
visitor is using a real ip .

The authour provided the functions , but now I am having problems to reproduce the outputs of the functions ....

Anyone can help me to reproduce the output of the functions on http://www.cgsa.net/php/identifierShow.php ?

Thank you very much

DON'T DOUBLE POST!!!!!!

Tis one of the rules around here!

uhmm ... in other 3rd my discussion was not never started.

Ok I will go otherplace , since here there is no people interested to discuss my problem.