apache 清理 URL 重定向循环
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Clean URL Redirect Loop
提问by prngleo
I'm trying to create clean URLs on my website. Now I succeeded in configuring apache so every request like mysite.com/pagewill work. But I also want that requests for mysite.com/page.phpwill be redirected to mysite.com/page. I've set environment variable in .htaccess to check if i already been redirected to prevent loops, but i still get them... Here's the .htaccess:
我正在尝试在我的网站上创建干净的 URL。现在我成功地配置了 apache，所以像mysite.com/page这样的每个请求都可以工作。但我也希望对mysite.com/page.php 的请求将被重定向到mysite.com/page。我在 .htaccess 中设置了环境变量来检查我是否已经被重定向以防止循环，但我仍然得到它们......这是 .htaccess：
<IfModule mod_rewrite.c>
Options +FollowSymlinks
RewriteEngine On
RewriteBase /
# set the variable
RewriteRule ^$ - [L]
RewriteRule ^(.*)$ [E=REWROTE:0]
# this works fine
# make mysite.com/page work and set REWROTE variable to 1
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME}\.php -f
RewriteRule ^(.*)$ .php [L,E=REWROTE:1]
# but if i enable this, i get redirected and then stuck in a loop
# redirect mysite.com/page.php to mysite.com/page , but only if REWROTE not 1
#RewriteCond %{ENV:REWROTE} !^1$
#RewriteRule ^(.*)\.php$ [R=301,L]
Thanks!
谢谢！
回答by Michael Haren
回答by Gumbo
You could check the request line for what has originally been requested:
您可以检查请求行以了解最初请求的内容：
RewriteCond %{THE_REQUEST} ^[A-Z]+\ (/[^\ ]*)\.php[?\ ]
RewriteRule \.php$ %1 [R=301,L]
Oh, and the first argument of the RewriteConddirectiveis not a regular expression but just a string. So the escaping the .is wrong.
哦，该RewriteCond指令的第一个参数不是正则表达式，而只是一个字符串。所以逃避.是错误的。
回答by fooquency
Is there some reason why you can't use the end-of-string termination character, $ ?
有什么原因不能使用字符串结束符 $ 吗？
RewriteRule ^/(.+)\.php$ /
will redirect /page.php to /page but will not do any redirecting on /page .
会将 /page.php 重定向到 /page 但不会在 /page 上进行任何重定向。
Fundamentally, using techniques like setting environment variables and adding checks for REDIRECT_STATUS is not going to be very robust.
从根本上说，使用诸如设置环境变量和添加对 REDIRECT_STATUS 的检查之类的技术不会非常健壮。
回答by cazz
another quick & dirty way to prevent looping in these situations i've found is to add a querystring and then check for its existence in the redirect.
在我发现的这些情况下，另一种防止循环的快速而肮脏的方法是添加一个查询字符串，然后在重定向中检查它是否存在。
RewriteCond %{QUERY_STRING} !a=a
RewriteRule ^(.*)\.php$ %1 [NC,R=301,L]
RewriteRule ^(.*)$ .php?a=a [NC,L]
found on this site: http://answers.oreilly.com/topic/542-how-to-properly-redirect-for-maximum-seo/
在此站点上找到：http: //answers.oreilly.com/topic/542-how-to-properly-redirect-for-maximum-seo/
