Interpreting PHP in dynamic generated web-pages

Hi, I'm trying to solve the following issue in a (hopefully) simply way: - I'm creating web-pages using php and perl (using a page template) - the dynamically created pages may contain php code which I like to get interpreted in a normal fasion. The ideas is have to solve the problem are: - using 'eval()' ... that does not seem to work correctly, because the pages may use <?php ... ?> blocks allover and the variable context seems not to be maintained. (btw: I already redirected the eval() output to a string) - save the created page to a file and redirect the browser to the new page (seems to be slow, because interaction with the users browser is required What I like to do: - simply create the page (as normal), but instead of sending this page to the browser, I like to send it to the web-server again (linux with apache & windows with IIS). So the webserver can handle the page as it had been a normal php page. Any idea????