i.e to replace Apache with a PHP application that sent back html files when http requests for .php files are sent?
How practical is this?
Just FYI, PHP 5.4 just released with in-built webserver. Now you can run a local server with very simple commands like -
$ cd ~/public_html
$ php -S localhost:8000
And you'll see the requests and responses like this -
PHP 5.4.0 Development Server started at Thu Jul 21 10:43:28 2011
Listening on localhost:8000
Document root is /home/me/public_html
Press Ctrl-C to quit.
[Thu Jul 21 10:48:48 2011] ::1:39144 GET /favicon.ico - Request read
[Thu Jul 21 10:48:50 2011] ::1:39146 GET / - Request read
[Thu Jul 21 10:48:50 2011] ::1:39147 GET /favicon.ico - Request read
[Thu Jul 21 10:48:52 2011] ::1:39148 GET /myscript.html - Request read
[Thu Jul 21 10:48:52 2011] ::1:39149 GET /favicon.ico - Request read