我想我只需要第二双眼睛，因为我不明白为什么会出现服务器错误。
RewriteEngine On
RewriteRule ^Gig/([a-zA-Z0-9_-]+)$ gig.php
RewriteRule ^Gig/([a-zA-Z0-9_-]+)/$ gig.php
#allow non caps
RewriteRule ^gig/([a-zA-Z0-9_-]+)$ gig.php
RewriteRule ^gig/([a-zA-Z0-9_-]+)/$ gig.php
编辑：
我现在查看了日志，原因是内部重定向太多。我自己在 mod_rewrites 等方面不太胜任，所以请看看。
#redirect so home page shows /Home
Redirect /home.php http://localhost/Home
#add php extension
RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME}\.php -f
RewriteRule ^(.*)$ $1.php
Redirect /home.php http://localhost/Home
# redirect to .php-less link if requested directly
RewriteCond %{THE_REQUEST} ^[A-Z]+\s.+\.php\sHTTP/.+
RewriteRule ^(.*)\.php /$1 [R=301,L]
#redirect www to non-www
RewriteEngine On
RewriteCond %{HTTP_HOST} ^www\.^([a-zA-Z0-9_-]+)$ [NC]
RewriteRule ^(.*)$ http://^([a-zA-Z0-9_-]+)$1 [L,R=301]
#remove trailing slash
RewriteEngine on
RewriteRule ^(.*)/$ /$1 [L,R=301]
#allow artistprofile nice url
RewriteEngine On
RewriteRule ^([a-zA-Z0-9_\-]+)/?$ artist_profile.php
#info nice url
RewriteEngine On
RewriteRule ^([a-zA-Z0-9_\-]+)/[Aa]bout/?$ artist_about.php
#gigs nice url
RewriteEngine On
RewriteRule ^([a-zA-Z0-9_\-]+)/[Gg]igs/?$ artist_gigs.php
#tracks nice url
RewriteEngine On
RewriteRule ^([a-zA-Z0-9_\-]+)/[Tt]racks/?$ artist_tracks.php
#gig nice url
RewriteEngine On
RewriteRule ^[Gg]ig/([a-zA-Z0-9_\-]+)/?$ gig.php
这就是 .htaccess 文件中的所有重写
编辑： 问题是添加 PHP 扩展部分
#add php extension
RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME}\.php -f
RewriteRule ^(.*)$ $1.php
我认为这是由于([a-zA-Z0-9_-]+)在文件名之后。