.htaccess RewriteRule更改下划线变为破折号

Question

I have a ReWrite rule in my .htaccess file right now:

RewriteRule ^item/?([a-zA-Z0-9_]+)?/?([a-zA-Z0-9_]+)?/?$ static/items.php?a=$1&b=$2 [NC,L]

It will pick any items that have an underscore:

item/new_item/new_order

However, I need to change from underscore to dashes to make it:

item/new-item/new-order

If I simply make a change in RewriteRule string it breaks it. Not sure how to fix that.

RewriteRule ^item/?([a-zA-Z0-9-]+)?/?([a-zA-Z0-9-]+)?/?$ static/items.php?a=$1&b=$2 [NC,L]

Answer 1

This is fairly tricky stuff but can be done using following Rewrite rules:

RewriteEngine On

# first replace each _ by - recursively
RewriteRule ^(item)/([^_]*)_(.*)$ /$1/$2-$3 [L,NC]

# now usual stuff to forward request to static/item.php
RewriteRule ^(item)/([^_/]*)/?([^_/]*)/?$ static/$1.php?a=$2&b=$3 [L,QSA,NC]