的RewriteCond以任何顺序相匹配的查询字符串参数 [英] RewriteCond to match query string parameters in any order

问题描述

我有可能包含三个参数的URL：

I have a URL which may contain three parameters:

1. ？类别=电脑
2. ＆安培;子类=笔记本电脑
3. ＆安培;产品=戴尔的Inspiron-15

我需要301重定向URL以便和其友好的版本：

I need 301 redirect this URL to its friendly version:

http://store.example.com/computers/laptops/dell-inspiron-15/

我有这个，但不能让它工作，如果查询字符串参数是任何其他命令：

I have this but cannot make it to work if the query string parameters are in any other order:

RewriteCond %{QUERY_STRING} ^category=(\w+)&subcategory=(\w+)&product=(\w+) [NC]
RewriteRule ^index\.php$ http://store.example.com/%1/%2/%3/? [R,L]

推荐答案

可以用多个步骤实现这一点，通过检测一个参数，然后转发到下一个步骤，然后重定向到最终目的地

You can achieve this with multiple steps, by detecting one parameter and then forwarding to the next step and then redirecting to the final destination

RewriteEngine On

RewriteCond %{QUERY_STRING} ^category=([^&]+) [NC,OR]
RewriteCond %{QUERY_STRING} &category=([^&]+) [NC]
RewriteRule ^index\.php$ $0/%1

RewriteCond %{QUERY_STRING} ^subcategory=([^&]+) [NC,OR]
RewriteCond %{QUERY_STRING} &subcategory=([^&]+) [NC]
RewriteRule ^index\.php/[^/]+$ $0/%1

RewriteCond %{QUERY_STRING} ^product=([^&]+) [NC,OR]
RewriteCond %{QUERY_STRING} &product=([^&]+) [NC]
RewriteRule ^index\.php/([^/]+/[^/]+)$ http://store.example.com/$1/%1/? [R,L]

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要避免或和双重条件，则可以使用

---

To avoid the OR and double condition, you can use

RewriteCond %{QUERY_STRING} (?:^|&)category=([^&]+) [NC]

作为@TrueBlue建议。

as @TrueBlue suggested.

另一种方法是preFIX中的的TestString 的 QUERY_STRING 以＆＆安培; ，并检查总是

Another approach is to prefix the TestString QUERY_STRING with an ampersand &, and check always

RewriteCond &%{QUERY_STRING} &category=([^&]+) [NC]

---

此技术（prefixing所述的的TestString 的）也可以用来推进已经发现参数到下一 的RewriteCond 。这让我们简化了三条规则，只是一个

---

This technique (prefixing the TestString) can also be used to carry forward already found parameters to the next RewriteCond. This lets us simplify the three rules to just one

RewriteCond &%{QUERY_STRING} &category=([^&]+) [NC]
RewriteCond %1!&%{QUERY_STRING} (.+)!.*&subcategory=([^&]+) [NC]
RewriteCond %1/%2!&%{QUERY_STRING} (.+)!.*&product=([^&]+) [NC]
RewriteRule ^index\.php$ http://store.example.com/%1/%2/? [R,L]

在！仅用于已经发现和重新排序参数，从​​分离 QUERY_STRING 。

The ! is only used to separate the already found and reordered parameters from the QUERY_STRING.

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