rewrite问题

leuko

我的.htaccess文件内容：

#<IfModule mod_url.c>
#CheckURL Off
#</ifModule>
RewriteEngine On

#RewriteBase /blog/

RewriteCond %{ENV:REDIRECT_SURI} !^$
RewriteRule (.*) - [L]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^(.+[^/])$ $1/ [L]
#RewriteRule ^$ blog/index.php [L]

#RewriteRule /* blog/index.php [L]
RewriteRule ^[[:alnum:]]+/*$ blog/index.php [L]
#RewriteRule /*$         blog/index.php [L]


RewriteRule ^[[:alnum:]]+/+[0-9]+$ blog/item.php [L]
RewriteRule ^favicon\.ico$ blog/favicon.ico.php [L]
RewriteRule ^[[:alnum:]]+/+favicon\.ico$ blog/favicon.ico.php [L]
RewriteRule ^index\.gif$ blog/index.gif.php [L]
RewriteRule ^[[:alnum:]]+/+index\.gif$ blog/index.gif.php [L]
RewriteCond %{QUERY_STRING} (^|&)pl=([0-9]+)
RewriteRule ^([[:alnum:]]+)/+index\.php$ $1/%2 [NE,L]
RewriteRule ^[[:alnum:]]+/+index\.php$ blog/index.php [L]
RewriteRule ^[[:alnum:]]+/+index\.xml$ blog/rss/index.php [L]
RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule !^(blog|cache)/ - [L]
RewriteRule ^[[:alnum:]]+/+(thumbnail)/([0-9]+/.+) cache/$1/$2 [L]

RewriteRule ^[[:alnum:]]+/+(entry|attachment|category|keylog|tag|search|plugin)/? blog/$1/index.php [L]


RewriteRule ^[[:alnum:]]+/+(.+)/[0-9]+$ blog/$1/item.php [L]
RewriteRule ^[[:alnum:]]+/+(.+)$ blog/$1/index.php [E=SURI:1,L]

#end .htaccess


其中最后一句中RewriteRule ^[[:alnum:]]+/+(.+)$ blog/$1/index.php [E=SURI:1,L]
E=SURI:1  有什么作用啊？为什么我把它删掉就会报错呢？？但好像又没什么作用？
如：RewriteRule ^[[:alnum:]]+/+(.+)$ blog/$1/index.php [L]
然后就会报错：Internal Server Error
很不明白原因，我只知道其作用是环境变量，删掉为什么会报服务器错误呢？
请各位指点，谢谢先~~~

leuko

怎么老大们都不帮我解答的~~~~

linuxnextyear

是不是blog或者这个目录的子目录下使用了SURI这个环境变量??

但是:1 不知道什么作用!!

帮助文档里面是RewriteEngine on
RewriteRule   ^(.*)/S=([^/]+)/(.*)    $1/$3 [E=STATUS: $2]

leuko

blog或者这个目录的子目录下没有使用到SURI这个环境变量

我grep -lri 'SURI' * 没找到有

而且我在正常时的文件开头我加了句:
echo time();exit;

xpowner

同问啊~望高手解答一下！

leuko

好烦啊，没人解答下，到现在还不明白啊~~~