apache htaccess为seo友好重写url

Question

I am trying and failing at the moment to rewrite my urls for seo friendliness. Can you point out where I might be going wrong?

I'm trying to rewrite this url:

http://www.chillisource.co.uk/product?&cat=Grocery&q=Daves%20Gourmet&page=1&prod=B0000DID5R&prodName=Daves_Insanity_Sauce

To this:

http://www.chillisource.co.uk/product/Grocery/Daves%20Gourmet/1/B0000DID5R/Daves_Insanity_Sauce

This is my .htaccess

RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME}\.php -f
RewriteRule ^(.*)$ $1.php

RewriteRule ^product/([a-zA-Z0-9]+)/([a-zA-Z0-9]+)/([a-zA-Z0-9]+)/([a-zA-Z0-9]+)/([a-zA-Z0-9]+) /product?&cat=$1&q=$2&page=$3&prod=$4&prodName=$5

The first part allows me to go without the .php in the filenane.

This currently gives me error 500 when I try and go to: http://www.chillisource.co.uk/product/Grocery/Daves%20Gourmet/1/B0000DID5R/Daves_Insanity_Sauce

I've read up on mod_rewrite but I'm a novice programmer and finding it hard going. I don't get how $1, $2, $3, $4, $5 which are the variables in my url get transfered to the other side, is ([a-zA-Z0-9]+) correct?

Thanks in advance.

Answer 1

$1 corresponds to your first set of parenthesis in the first part of your rewrite rule. $2 to the second set of parenthesis and so on.

Daves%20Gourmet contains a space character which is not accounted for in your 2nd pattern i.e. things between 2nd set of parenthesis. Again you are not taking care of _ in the url.

I would try this

RewriteRule ^product/([a-zA-Z]+)/([\sa-zA-Z0-9]+)/([0-9]+)/([A-Z0-9]+)/([a-zA-Z_]+) /product?&cat=$1&q=$2&page=$3&prod=$4&prodName=$5

Assuming your page parameter is always an integer and your 4th parameter contains only upper case letters.