url - how to hide .php from address bar -

i use php build web applications, want web pages without .php extension in browser's address bar. eample http://www.example.com/index.php shows http://www.example.com/index in browser's address bar.

how can this?

put in file named .htaccess in www-root:

rewriteengine on rewritecond %{request_filename} !-d rewritecond %{request_filename} !-f rewriterule ^(([a-za-z0-9\-]+/)*[a-za-z0-9\-]+)?$ $1.php 

this works if you're running apache , have mod_rewrite activated.