在使用 CodeIgniter 时正确配置 Mod 重写

我发现了几个关于CodeIgniter和mod重写问题的相关问题，但是，我还没有找到解决我目前遇到的问题的方法。

我目前有：mywebsiteurl.netfirms.com/mywebsite/index.php/admin/login

我想实现的是从 URL 中删除索引.php如下所示：mywebsiteurl.netfirms.com/mywebsite/admin/login

然而，在尝试了我在StackOverflow上找到的几个修复程序后，我最终偶然发现了一个很好的小指南。

我已经修改了我的模组重写，如下所示：

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
### Canonicalize codeigniter URLs
# If your default controller is something other than
# "welcome" you should probably change this
RewriteRule ^(home(/index)?|index('.php)?)/?$ / [L,R=301]
RewriteRule ^(.*)/index/?$ $1 [L,R=301]
# Removes trailing slashes (prevents SEO duplicate content issues)
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.+)/$ $1 [L,R=301]
# Enforce www
# If you have subdomains, you can add them to 
# the list using the "|" (OR) regex operator
# RewriteCond %{HTTP_HOST} !^(www|subdomain) [NC]
# RewriteRule ^(.*)$ http://www.domain.tld/$1 [L,R=301]
# Enforce NO www
#RewriteCond %{HTTP_HOST} ^www [NC]
#RewriteRule ^(.*)$ http://domain.tld/$1 [L,R=301]
###
# Removes access to the system folder by users.
# Additionally this will allow you to create a System.php controller,
# previously this would not have been possible.
# 'system' can be replaced if you have renamed your system folder.
RewriteCond %{REQUEST_URI} ^system.*
RewriteRule ^(.*)$ /index.php/$1 [L]
# Checks to see if the user is attempting to access a valid file,
# such as an image or css document, if this isn't true it sends the
# request to index.php
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php/$1 [L]

# Without mod_rewrite, route 404's to the front controller
ErrorDocument 404 /index.php

即使在实现此 mod-rewrite 之后，如果我尝试访问 404 mywebsiteurl.netfirms.com/mywebsite/admin/login，我也会收到 404 错误。如果我去 mywebsiteurl.netfirms.com/mywebsite/index.php/admin/login 我就可以很好地加载页面。

我的问题归结为如何为代码点火器正确配置我的模组重写？也许我缺少一些设置？我对 mod-rewrite 不够熟悉，无法真正知道哪里出了问题。

我还应该提到我已经在我的代码点火器配置文件中进行了更改。

$config['index_page'] = '';

有没有人对我在这里可能做错了什么有任何想法？

提前谢谢。