htaccess rewrite rule with escaped ampersand in $_GET fails

问题

I am encountering a problem with a get parameter in conjunction with a htaccess rewrite rule. Below is the urlencode()'ed link; the rewrite rule I use to redirect to index.php, and lastly, a print_r($_GET) on the index.php. As you can see, the urlescaped ampersand is not part of the value for variable static, but instead and contrary to my expectation gets interpreted as a variable seperator. Why?

Initial link:

<a href="static/Game-Tech-%26-Arts-Lab">link</a>

.htaccess:

RewriteRule ^static/(.*)$ /index.php?static=$1 [L]

index.php:

Array ( [static] => Game-Tech- [-Arts-Lab] => )

回答1:

Ah, okay. Interesting. It seems there is a special solution for keeping that ampersand specifically escaped. Use the [B] flag for Rewriterules.

RewriteRule ^static/(.*)$ /index.php?static=$1 [L,B]

This is supposed to urlencode special characters when interpolating the $1 placeholder. It only works with Apache 2.2 however I believe.

Found a few references:

• http://www.dracos.co.uk/code/apache-rewrite-problem/
• mod_rewrite with question marks and ampersands (with PHP)
• http://www.mediawiki.org/wiki/Manual:Short_URL/Ampersand_solution

来源：https://stackoverflow.com/questions/8467254/htaccess-rewrite-rule-with-escaped-ampersand-in-get-fails