Using Mod-Rewrite to change Paths into files

I've searched both Google, and stackoverflow for more than 48 hrs, and I haven't found a similar question/solution; hence, my asking for help.

If I want to rewrite URLs such as http://localhost/filename to obtain filename.php (such that localhost/开发者_开发技巧aboutus fetches aboutus.php, localhost/contact fetches contact.php, etc).

How do I do that? I don't want to write a rule for each of the pages; I want the 'filename' to be a dynamic so that a single rule will work for all the pages in the specific folder.

I tried:

RewriteRule ^(.*)/?$ $1.php

In a .htaccess file, and I keep receiving a 500 error. Thanks.

The whole file contains this:

   RewriteEngine On

   RewriteBase /

   RewriteRule ^(.*)/?$ $1.php

That's all the file contains

The 500 error can have lots of reasons - is there a way to obtain more information about it?

Anyway, possibly your problem is the greedy approach of (.*) and your handling of the trailing slash that may be there or not.

Try

RewriteRule ^([_a-zA-Z0-9]*)/?$ $1.php 

instead which will only match the characters inside the [] and not include a '/'.

You can check your RewriteRules here: http://martinmelin.se/rewrite-rule-tester/