url 变量在重写规则后设置

Question

RewriteCond %{THE_REQUEST} \s/+blog/index\.php\?c=([^\s&]+) [NC]
RewriteRule ^ blog/%1? [R=301,L]
RewriteRule ^blog/([\w-]+)?$ blog/index.php?c=$1 [L,QSA]

以上工作正常
现在，如果没有 c 变量，我需要一个规则 - 只是 index.php

RewriteCond %{THE_REQUEST} \s/+blog/index\.php [NC]
RewriteRule ^blog/ [L,R=301,NE]  

php

if(isset($_GET['c'])){$cat = $_GET['c'];}
var_dump($cat); // empty string

我不希望在第二种情况下设置 c 变量
是什么原因？

Answer 1

使用您显示的示例/尝试，请尝试遵循 htaccess 规则。请确保在测试您的 URL 之前清除您的浏览器缓存。

RewriteEngine ON
##Rules for uris which have only index.php in it.
RewriteCond %{THE_REQUEST} \s/(blog)/index\.php\s [NC]
RewriteRule ^ %1/index.php? [L,R=301,NE,NC] 

##Rules for uris which have c variable added in it.
RewriteCond %{THE_REQUEST} \s/(blog)/index\.php\?c=([^\s&]+)\s [NC]
RewriteRule ^  %1/%2? [R=301,L]

##Rules for non-existent pages.
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(blog)/([\w-]+)/?$  $1/index.php?c=$2 [NC,L,QSA]

OR 以上规则集对没有查询字符串的 URL 进行重定向到 index.php，如果您不想执行重定向，请尝试以下规则，使确保一次只使用一个以上或以下规则。

RewriteEngine ON
##Rules for uris which have only index.php in it.
RewriteCond %{THE_REQUEST} \s/(blog)/index\.php\s [NC]
RewriteRule ^ %1/index.php? [L,NC] 

##Rules for uris which have c variable added in it.    
RewriteCond %{THE_REQUEST} \s/(blog)/index\.php\?c=([^\s&]+)\s [NC]
RewriteRule ^ %1/%2? [R=301,L]

##Rules for non-existent pages.
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d    
RewriteRule ^(blog)/([\w-]+)/?$ $1/index.php?c=$2 [NC,L,QSA]