turning on paging in php code input format results eval error

If paging filter is enabled for the "php code input format" loading a page that uses it results in the following error:

Parse error: parse error, unexpected $ in /var/www2/drupal/includes/common.inc(1342) : eval()'d code on line 36

It doesn't matter which order the filters are in ie. paging first and php second or vice versa.
Anyways I'm trying to implement a paged database query result page that dynamically puts "

"s into
the resulting page every 10th result.