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Optional Additional Get Variables

Posted on 2007-03-20
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Last Modified: 2012-05-05
I have this in my htaccess, which works fine:
RewriteRule ^product/(.*)/(.*)/(.*).php$ /naughty/products/product.php?DPID=$2

I would like to be able to pass 'additional' optional get variables. so I was thinking something like (this does not work though):
RewriteRule ^product/(.*)/(.*)/(.*).php\??(.*)$ /naughty/products/product.php?DPID=$2&$4
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Question by:sypder
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smidgie82 earned 2000 total points
ID: 18760132
The problem is that the RewriteRule directive only matches its regex against the URL, not the query string.  So, when you visit, for instance, http://example.com/product/1/2/3.php?color=gray, your RewriteRule only sees "/product/1/2/3.php".

If you want "color=gray" to be appended, as your rule indicates, you should do the following instead:
RewriteRule ^product/(.*)/(.*)/(.*).php\??(.*)$ /naughty/products/product.php?DPID=$2&%{QUERY_STRING}

Of course, if there was no query string initially, the new URL will look like "/naughty/products/product.php?DPID=2&", which probably is not what you want.  So instead, you can use the QSA flag, and any part of your new URL that Apache recognizes as part of a query string (i.e., anything after '?') will be _appended_ to the existing query string, instead of replacing it:
RewriteRule ^product/(.*)/(.*)/(.*).php\??(.*)$ /naughty/products/product.php?DPID=$2 [QSA]

I haven't tested the above for syntactic correctness, but the reasoning is correct.  I hope that helps!
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by:sypder
ID: 18761755
Perfect!

Just for archival purposes. the final syntax I used was:

RewriteRule ^product/(.*)/(.*)/(.*).php$ /naughty/products/product.php?DPID=$2 [QSA]
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