Affiliate ID in wordpress

Hi everyone! I have an affiliate program and want to add a blog, which my webmasters going to promote. Now i have a little problem with registering the referrer ID in wordpress. For normal html pages i'm using this linking code: <a href="[login to view URL];PA=<?=(@$_GET['REFFID'])?$_GET['REFFID']:'XXXXXX'?>&HTML=<?=(@$_GET['tour'])?$_GET['tour']:'[login to view URL]'?>/">Visit My-Website</a> and AddType application/x-httpd-php .html .xml in htaccess. So when the webmaster is linking to my site with [login to view URL] his refferrer ID getting registered on my site and the link is displayed like this: [login to view URL];PA=XXXXXX&HTML=[login to view URL] But in wordpress it doesn's work. Can anyone add this feature please Thanks