RewriteRule .htaccess正在转发PHP变量

Question

I am trying to forward old posts on my site using .htaccess RewriteRule to new addresses.

First rule is

RewriteCond %{QUERY_STRING} id=16
RewriteRule ^current_article\.php$ /article/basics-of-electrosurgery [L,R=301]

which rewrites http://www.megadyne.com/current_article.php?id=16 to http://www.megadyne.com/article/basics-of-electrosurgery

Second rule is

RewriteRule ^article/([A-Za-z0-9-]+)/?$ articles.php?id=$1 [NC]

which rewrites http://www.megadyne.com/article/basics-of-electrosurgery to http://www.megadyne.com/articles.php?id=basics-of-electrosurgery

All works fine except the final result is http://www.megadyne.com/article/basics-of-electrosurgery?id=16 and I don't want it to append the final variable "?id=16" to the address.

Answer 1

You need a ? at the end of your first rule, and should probably add some boundaries to the query string match:

RewriteCond %{QUERY_STRING} (^|&)id=16($|&)
RewriteRule ^current_article\.php$ /article/basics-of-electrosurgery? [L,R=301]

When there's a query string in the request, it automatically gets appended to the end of the rule's target unless you are creating a query string in the target. So here, you're creating an empty query string, and without the QSA flag, the existing query string won't get appended.