.htacces重写规则问题

Question

这是工作：

RewriteRule ^([a-z]{2}/){0,1}showCategory/([0-9]*)/([0-9]*)(/{0,1})$    /main.php?id=$2&il[lang]=$1&page=$3 [L] 

这个网址：

http://localhost/showCategory/590/10 

现在，我想这也工作：

http://localhost/showCategory/590/transport/10 

我尝试的规则：

RewriteRule ^([a-z]{2}/){0,1}showCategory/([0-9]*)/([a-z\-_0-9\+]*)/([0-9]*)(/{0,1})$    /main.php?id=$2&il[lang]=$1&page=$3 [L] 

如何更改RewriteRule？

Answer 1

这一个工程有两个URL

RewriteRule ^([a-z]{2}/)?showCategory/([0-9]+)(?:/[A-Za-z0-9_-]+)?/?([0-9]+)/?$ /main.php?id=$2&il[lang]=$1&page=$3 [L] 

我也是{0,1}与简化？这也是一样的。

的关键是(?:/[A-Za-z0-9_-]+)?，解释：

(?:     Non-capturing group, so what's in here will not be put in any $n 
/     Match the slash 
    [A-Za-z0-9_-]+  Match any word with letters/numbers/dashes/underscores 
)?     Close non-capturing group, and the ? means it's optional 

Answer 2

试试这个规则：

RewriteRule ^([a-z]{2}/)?showCategory/([0-9]+)/[a-z-_0-9+]+/([0-9]+)/?$ /main.php?id=$2&il[lang]=$1&page=$3 [L]