I am stuck: Error on a line that begins with the word "const" !!

Me again! I am trying to create a currency converter function for my
eCommerce that still pet treats. I am a little short on money recently
and so cannot afford a programmer. Can somebody tell me why my script
tells me that I have a syntax error on the "CONST" line. I am trying
to follow the article below.

Article: http://www.talkphp.com/showthread.php?t=1503

The error I get is:

Parse error: parse error, expecting `T_OLD_FUNCTION' or
`T_FUNCTION'...

My server is CentOS 4 or 5, I forget which, running PHP 4.1.0 with
MySQL 5, I think. The line that it shows me the error on is:

const OPT_FILE = 'talkphp_conversion_rates.json';

Please help! Also, somebody mentioned something about cross-posting on
newsgroups so that I can post to more than 1 group in case I do not
get a good answer in 1. Could somebody tell me how to do this with
Google Groups please!!

Thannk you.

> My server is CentOS 4 or 5, I forget which, running PHP 4.1.0 with...



You are trying to use a class constant ("const"). It seems like you
are trying to do some OOP (Object Oriented Programming), i don't think
"const" was not introduced into the PHP OOP model until php5.

Either replace "const" with define('const_name','value') or update
your php version to php5.