Apache rewriterule for querystring parameters

apache-2.2mod-rewriterewrite

The code below builds a url in this form.

http://mysite.com/browse/department/?pid=1

and here is the rewrite cond and rule

RewriteCond %{QUERY_STRING} ^pid=([0-9]+)
RewriteRule browse/(.*)/$ show_products.php?department=$1&pid=%1

What i would like is to have 2 extra parameters the first is order buy and the second which isn't necessarily in the url which would be filter so the url would be like this

http://mysite.com/browse/department/?pid=1&order_by=a_z

or with parameter filter

http://mysite.com/browse/department/?pid=1&order_by=a_z&filter=1

How do I have my rewrite condition and my rewrite rule

Best Answer

You can add the existing query string to your request using the QSA flag (query string append). Since in your case you aren't actually changing the parameters you can do it a lot simpler:

RewriteRule browse/(.*)/$ show_products.php?department=$1  [QSA]

This will rewrite

http://mysite.com/browse/department/?pid=1&order_by=a_z

/show_products.php?department=department&pid=1&order_by=a_z

And:

http://mysite.com/browse/department/?pid=1&order_by=a_z&filter=1

/show_products.php?department=department&pid=1&order_by=a_z&filter=1

Related Solutions

Apache mod_rewrite, using current URL in RewriteCond

You can access the "current" URI via a backreference. From the RewriteRule documentation...

TestString is a string which can contain the following expanded constructs in addition to plain text:

RewriteRule backreferences: These are backreferences of the form $N (0 <= N <= 9), which provide access to the grouped parts (in parentheses) of the pattern, from the RewriteRule which is subject to the current set of RewriteCond conditions.

You can handle the initial slash more cleanly too — the request URI always starts with a /. (The shortest request you can make is GET / HTTP/1.0.) The solution is...

# Map '/' to '/home'
RewriteRule ^/$ /home

# Check for cached page
RewriteCond %{DOCUMENT_ROOT}/system/cache/$1.html -f
RewriteRule ^/(.+)$ /system/cache/$1.html [QSA,L]

Question about RewriteRule and HTTP_HOST server variable

You can use %1 (and %2, etc) to access matches in preceding RewriteCond statements:

RewriteEngine On
# don't redirect no-leech.jpg or we'll end up in a loop
RewriteCond %{REQUEST_URI} !^/no-leech.jpg$
# match Host header and store
RewriteCond %{HTTP_HOST} (.*)
RewriteRule \.(jpg|jpe?g|gif|png|bmp)$ http://%1/no-leech.jpg [R,NC,L]

Test:

# GET -Sd http://localhost/foo.jpg
GET http://localhost/foo.jpg --> 302 Found
GET http://localhost/no-leech.jpg --> 200 OK

And with a different Host header:

# GET -SedH 'Host: foo.bar.com' http://localhost/foo.jpg
GET http://localhost/foo.jpg --> 302 Found
GET http://foo.bar.com/no-leech.jpg --> 200 OK

Best Answer

Related Solutions

Apache mod_rewrite, using current URL in RewriteCond

Question about RewriteRule and HTTP_HOST server variable

Related Topic