Getting an error using constants

I have a lot of pages, all of which require the file characters.php. This file contains constants which define many things in my website. They are defined like this, for example:

const $humanHEALTH = 1.1;

Everything works properly running it in my localhost using WAMP, but when I upload it to an online host I get this error:

Parse error: syntax error, unexpected T_CONST

I used phpinfo() on one of the pages and the PHP version is 5.2.17.

Any help would be greatly appreciated.

Answer

In PHP 5.2 it’s define('constant_name', 'value');