Here you can find some of the demo files from the
  ePerl webpages. They demonstrate typical situations
  for which ePerl can be used.

  The ones with extension .phtml can be used for testing with
  the stand-alone NPH/CGI program nph-eperl.
  The ones with extension .iphtml can be used for testing with
  the internal Apache/mod_perl handler Apache::ePerl.