Integration with bidding site

Can someone tell me why this does not work?

<? $value2 = {USER->username}; ?>
I'm running it inside header.tpl

EDIT:
$PHORUM['DATA']['USER']['username'];



Edited 1 time(s). Last edit at 11/08/2012 07:52PM by PRICECHR.

yes, the other part is a template variable, not useable in php code.

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Thomas Seifert

I want to integrate this also at my this site- sposamoda.pl.How can I do this?