Web Hosting Talk : Web Hosting Main Forums : Programming Discussion : Another mod_rewrite problem

[briggers]

Hi,
I have a php site in which different pages are called by a url like:

www.mysite.com/dir/index.php?p=21&x=12345679

There may or may not be a number of other paramaters after the p paramater

Temporarily I want to redirect a number of those pages to another site so that for example

index.php?p=21 goes to www.myothersite.com/index.html
index.php?p=26 goes to www.myothersite.com/index.html
index.php?p=28 goes to www.myothersite.com/index.html

So I have tried to set a .htaccess file containing the following

RewriteEngine on
RewriteCond %{HTTP_HOST} ^mysite.com$ [OR]
RewriteCond %{HTTP_HOST} ^www.mysite.com$

RewriteRule ^dir\/index\.php\?p=2[168].*$ http://www.myothersite.com/index.html [L,R=302]

But this gives a 500 (internal server) error

I am not very familiar with either mod_rewrite or regexes so I cannot see what I am doing wrong. Can anyone point out the errors.

Thank you
Richard

[dtang4]

Why do you have the [168]?

[briggers]

'Cause that matches 21, 26, or 28 and no other number ( I think)

[netmar]

The only thing that I can see that might be causing a problem is that you've escaped the forward-slash for the directory. You don't need to do that, and it may be confusing the system.

Also, if you don't have any other pages that use the p=21 arguments, then you can probably dispense with the whole prefix and just use something like

RewriteRule ^(.*)p=2[168](.*) http://www.myothersite.com/index.html [L,R=302]

Otherwise, if you need the directory and the index.php, you might try something like

RewriteRule ^/dir/index.php.p=2[168](.*) http://www.myothersite.com/index.html [L,R=302]

[ionisis]

Also, for that type of rewrite, you shouldn't need the rewrite conditions, only the rewrite rule. The rewrite rule itself is also it's own condition.

[briggers]

Thanks for the tips so far but they do not seem to work. Reading the mod_rewrite documentation again I get the impression that I have to use RewriteCond when I want to test on a query string. so Ive tried

RewriteEngine on

rewritecond %{REQUEST_URI} ^.*index\.php.*$
RewriteCond %{QUERY_STRING} ^p=2[168]$
RewriteRule ^.*$ http://www.myothersite.com/index.html [L,R=302]

But that does not seem to work either.

Is there any better ideas?

Thanks

[briggers]

Thanks to g1smd in another forum I now have a working answer. For those who want to know how to do it the solution is:

RewriteEngine on

RewriteCond %{QUERY_STRING} (^|&)cPath=2[136](&|$)
RewriteRule  ^([^/]+/)*(index\.php)?$ http://www.myothersite.com/? [L,R=302]

This bit -

(^|&)cPath=2[136](&|$)

- finds the query string in the calling url even if it is not the first and even if there are following parameters

and this -

^([^/]+/)*(index\.php)?$

- makes sure that only the index.php page is redirected (when the condition above is met). The ? at the end prevents the "cPath=xx" from being appended to the othersite url

[ionisis]

Originally Posted by briggers

... I want to test on a query string...

Ah, that part i overlooked! Sorry about that. Yes, to match a query string, you MUST use a rewrite condition. Sorry again.