New tab in profile PHP Field code?

[GavoTrav]

It didnt work for me but this is what I get!

PHP Code:

        $this->block_data['twitter'] = '<a href="http://twitter.com/$userinfo[field26]"><img src="http://twitterimage.net23.net/image.php?username=$userinfo[field26]&sx=500&sy=170&fr=000&fg=000&fb=000&r=226&g=244&b=255&tweetcount=2"></a>';
    }