Simple and neat .htaccess redirect help required

This is a strange one...

A while back I managed to write a .htaccess redirect that worked so that the URL was read like: www.website.com/mt?page=index - and what the real URL of this page was www.website.com/PageParser.php?file=index.php

The problem has been that the FTP system of my webhost hides .htaccess files even though they are allowed and do operate - and so I have checked back on local copies I have of my .htaccess files and none of them have the code as to how this works - and I've forgotten how I did it!!

Essentially, I am using wildcards so that anything after mt?page= will actually be showing PageParser.php?file= but without having the PageParser.php showing within the URL (and this is the important bit, because the index.php on my site root is actually sent through PageParser.php first s开发者_如何转开发o that anything which shouldn't be there is wiped out before the end user sees it) - so how can .htaccess redirect/rewrite the URL so that any link to /mt?page= show the file located at /PageParser.php?file= without changing the URL the user sees?

---

RewriteEngine On
RewriteRule ^(.*)mt?page=(.*)$ $1PageParser.php?file=$2

---

RewriteEngine On
RewriteBase /

RewriteCond %{QUERY_STRING} ^page=([^&]+)
RewriteRule ^mt$ /PageParser.php?file=%1.php [NC,L]

1. This rule will rewrite (internal redirect) request for /mt?page=hello to /PageParser.php?file=hello.php without changing URL in browser.

2. Your source URL example (www.website.com/mt?page=index) has index while target URL (www.website.com/PageParser.php?file=index.php) has index.php. The above rule will add .php to the page name value, so if you request /mt?page=hello.php it will be rewritten to /PageParser.php?file=hello.php.php.

   If there is a typo in your URL example and page value should be passed as is, then remove .php bit from rewrite rule.

3. The rule will work fine even if some other parameters are present (e.g. /mt?page=hello&name=Pinky) but those extra parameters will not be passed to rewritten URL. If needed -- add QSA flag to rewrite rule.

4. This rule is to be placed in .htaccess in website root folder. If placed elsewhere some small tweaking may be required.

P.S. Better write no explanation (I knew it/I did it before .. but now I forgot how I did it) than having these "excuses". While it may be 100% true, it just does not sound that great.