mod_rewrite 和 php 变量答案

【问题标题】：mod_rewrite and php variablesmod_rewrite 和 php 变量
【发布时间】：2011-04-04 17:28:10
【问题描述】：

我正在尝试让 mod_rewrite 与我的网站一起使用，但由于某种原因它无法正常工作。我已经在我的 .htaccess 文件中输入了代码来将非 www 重定向到 www，所以我知道 mod_rewrite 正常工作。

我要更改的网址是example.com/index.php?p=home，所以新网址是example.com/page/home

但是，当我尝试此代码时，我只是得到一个 404，告诉我 /page/home 不存在。

Options +FollowSymLinks

RewriteEngine on

RewriteRule index/p/(.*)/ index.php?p=$1
RewriteRule index/p/(.*) index.php?p=$1

谁能帮帮我？

【问题讨论】：

标签： .htaccess mod-rewrite

【解决方案1】：

您的重写规则使用 index/p/xxxxx 但您想要 /page/xxxx

试试

RewriteRule ^/page/(.*)/ index.php?p=$1
RewriteRule ^/page/(.*) index.php?p=$1

【讨论】：

这是我应该在我的原始帖子中放入的内容。很抱歉造成混乱。

【解决方案2】：

您的模式与您的示例网址不匹配。假设您的示例 URL 是正确的，您需要的是：

Options +FollowSymLinks

RewriteEngine on

# We want to rewrite requests to "/page/name" (with an optional trailing slash)
# to "index.php?p=name"
#
# The input to the RewriteRule does not have a leading slash, so the beginning
# of the input must start with "page/". We check that with "^page/", which
# anchors the test for "page/" at the beginning of the string.
#
# After "page/", we need to capture "name", which will be stored in the
# backreference $1. "name" could be anything, but we know it won't have a
# forward slash in it, so check for any character other than a forward slash
# with the negated character class "[^/]", and make sure that there is at least
# one such character with "+". Capture that as a backreference with the
# parenthesis.
#
# Finally, there may or may not be a trailing slash at the end of the input, so
# check if there are zero or one slashes with "/?", and make sure that's the end
# of the pattern with the anchor "$"
#
# Rewrite the input to index.php?p=$1, where $1 gets replaced with the
# backreference from the input test pattern
RewriteRule ^page/([^/]+)/?$ index.php?p=$1

【讨论】：

这非常有效。我认为 ([^/]+)/?$ 修复了它。您能否解释一下该表达式的各个部分，以便我更好地理解它？
@kaotix - 我现在将 cmets 添加到规则中。我不确定您对正则表达式的熟悉程度，因此我尝试尽可能详细地解释。