我想传递的第一个目录作为一个变量和子目录另一个变量。

I want to pass first directory as a variable and subdirectory as another variable.

它的工作原理时，与这两个目录的URL（/事/ something2），但我得到一个错误404当我尝试只有一个（/某事）。

It works when for urls with both directories (/something/something2) but I get an error 404 when I try with only one (/something).

RewriteRule ([^/]+)/([^/]+) /posts/?category2=$1&category2=$2 [L,QSA]

我

如何传递只有类别1类别2时不可用？

How can I pass only category1 when category2 isn't available?

推荐答案

几个解决方案：

多个规则（比较容易理解，但有点慢）：

Multiple rules (easier to understand but a bit slower):

RewriteRule ^([^/]+) /posts/?category2=$1 [L,QSA]
RewriteRule ^([^/]+)/([^/]+) /posts/?category2=$1&category2=$2 [L,QSA]

单一的规则：

Single rule:

RewriteRule ^([^/]+)(/([^/]+))? /posts/?category2=$1&category2=$3 [L,QSA]

下面的URL（/ something2）的第二部分是可选的。请注意 - $ 2改成$ 3

Here the second part of URL (/something2) is optional. Please note -- $2 was changed to $3.