.htaccess：RewriteBase接受一个参数，即每个目录上下文的基本URL

Question

I am getting Internal server error due to .htaccess.

My code is below

RewriteEngine on

RewriteBase /

# Prevent CI index.php
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule .* index.php/$0 [PT,L] 

# Prevent user access to the CI system folder.
RewriteCond %{REQUEST_URI} ^system.*
RewriteRule ^(.*)$ /index.php?/$1 [L] 

# Prevent user access to the CI application folder
RewriteCond %{REQUEST_URI} ^application.*
RewriteRule ^(.*)$ /index.php?/$1 [L]

and error_log file show]

/home/adonwayc/public_html/billing/.htaccess: RewriteBase takes one argument, the base URL of the per-directory context
[Tue Jan 06 14:43:58.213270 2015] [core:alert] [pid 642720] [client 122.177.194.19:60610] /home/adonwayc/public_html/billing/.htaccess: RewriteBase takes one argument, the base URL of the per-directory context
[Tue Jan 06 14:39:28.780669 2015] [core:alert] [pid 583314] [client 122.177.194.19:57750] /home/adonwayc/public_html/billing/.htaccess: RewriteBase takes one argument, the base URL of the per-directory context
[Tue Jan 06 14:39:28.780603 2015] [core:alert] [pid 583314] [client 122.177.194.19:57750] /home/adonwayc/public_html/billing/.htaccess: RewriteBase takes one argument, the base URL of the per-directory context

Answer 1

/home/adonwayc/public_html/billing/.htaccess: RewriteBase takes one argument, the base URL of the per-directory context

Looking at the logs, your htaccess seems to be located in billing subfolder.
Your RewriteBase should then be /billing/.

Also, REQUEST_URI begins with a leading slash /.
Here is a corrected version of your htaccess

RewriteEngine on
RewriteBase /billing/

RewriteCond %{REQUEST_URI} ^/(?:system|application) [NC]
RewriteRule ^(.*)$ index.php?/$1 [L]

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php/$1 [L]