Can the URL rewite module help me? (mod_rewrite)

I have a php file will generate dynamic pages by different parameter:

http://www.mydomain.com/photos.php?category=car
http://www.mydomain.com/photos.php?category=building


I want to replace the above URLs by the followings:

http://www.mydomain.com/photos/car
http://www.mydomain.com/photos/building

(But actually, I don't have the photos/car/index.php file in the server)


Is it possible to rewrite like this?
I think it is quite diffcult, it would be great appreciated if also tell me how to do it :)

Please advise. Thanks.
saikitAsked:
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kalosiCommented:
Yes, the rewrite engine is meant exactly for this

here is the rule

RewriteEngine on
RewriteRule ^/photos.php?category=(.*)$ /photos/$1

david
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stCommented:
Thanks, David.

I put the two line in the http.conf file (within the <VirualHost *> tag)

Then, restart the Apache server and no error.

However, when I try the rewrite URL, it says error 404.

What should I check now?
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kalosiCommented:
The HTTP 404 error is document not found.

The rule is OK the problem is with it's destination.

In this links

http://www.mydomain.com/photos/car
http://www.mydomain.com/photos/building

the car and bulding are directories ??

if yes you must add an ending slash into the destination so the rule will be like this

RewriteEngine on
RewriteRule ^/photos.php?category=(.*)$ /photos/$1/

david
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stCommented:
I added the ending slash and restart apache, but still return 404 error. :(
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saikitAuthor Commented:
I changed the "AllowOverride None" to "AllowOverride All", then restart apache.

After that, I add the these 2 line into the .htaccess file:

RewriteEngine On
RewriteRule ^photos/(.*) /photos.php?category=$1


Now, it is working.  But, because I using <VirtualHost> for several sites, what is the security implication for chageing to "AllOverride All" that I should consider?

Thanks.
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kalosiCommented:
It only defines what can you override for example in .htaccess files.
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