.htaccess - 重定向到真实目录500错误

Question

mydomain.com/forum/ is a real directory.

When I do add these 2 lines to my .htaccess:

RewriteRule ^forum/([a-zA-Z0-9_-]+)/new-thread /forum/new-thread.php?comm=$1 [L]
RewriteRule ^forum/([a-zA-Z0-9_-]+) /forum/community.php?comm=$1 [L]

mydomain.com/forum/ AKA mydomain.com/forum/index.php throws a 500 error, as well as all rules that are supposed to be changed by these lines. What am I doing wrong?

Answer 1

You need to add boundaries to your regular expressions. For example, the regex ^forum/([a-zA-Z0-9_-]+) matches both /forum/new-thread and /forum/community so your rules are looping. You can either add the $ end of string match to your regex or add conditions to stop the rewrite:

RewriteRule ^forum/([a-zA-Z0-9_-]+)/new-thread$ /forum/new-thread.php?comm=$1 [L]
RewriteRule ^forum/([a-zA-Z0-9_-]+)$ /forum/community.php?comm=$1 [L]

or

RewriteCond %{ENV:REDIRECT_STATUS} 200
RewriteRule ^ - [L]

RewriteRule ^forum/([a-zA-Z0-9_-]+)/new-thread /forum/new-thread.php?comm=$1 [L]
RewriteRule ^forum/([a-zA-Z0-9_-]+) /forum/community.php?comm=$1 [L]

or

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^forum/([a-zA-Z0-9_-]+)/new-thread /forum/new-thread.php?comm=$1 [L]

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^forum/([a-zA-Z0-9_-]+) /forum/community.php?comm=$1 [L]