[mistwang]

Originally Posted by shanx24

And how do you do that? Many thanks,

You need to your own lsphp5 executable for PHP5 by following our Wiki, then add an external app for lsphp5 and script handler configuration for '*.php5' files at server level. Just duplicate our existing configuration for lsphp and 'php' script handler.

All virutal hosts configured through Apache httpd.conf will use similar configuration to handle php and php5 files.
Play around with the web admin interface and read the document, you will get an idea how things were configured. If you messed it up, just do a reinstallation.