我的php htaccess 404重定向有一个小问题-它没有重定向。
我有htaccess设置，用于删除文件名/页面的扩展名，我想知道这是否是导致问题的原因。但是，我被困住了，似乎无法弄清楚。
不是，它只是一直将所有错误重定向到索引页面。
我尝试了这个建议，但没有运气-Rewrite URL after redirecting 404 error htaccess
有什么建议吗？
这是我的htaccess：
Options -Indexes +FollowSymLinks -MultiViews
# Turn mod_rewrite on
RewriteEngine On
RewriteBase /
RewriteCond %{HTTP_HOST} ^www.sitename.com$ [NC]
RewriteRule ^(.*)$ http://sitename.com/$1 [R=301,L]
## hide .php extension snippet
# To externally redirect /dir/foo.php to /dir/foo
RewriteCond %{THE_REQUEST} ^[A-Z]{3,}\s([^.]+)\.php [NC]
RewriteRule ^ %1 [R,L]
# To internally forward /dir/foo to /dir/foo.php
#RewriteCond %{REQUEST_FILENAME} !-d
#RewriteCond %{REQUEST_FILENAME}.php -f
#RewriteRule ^(.*?)/?$ $1.php [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^([^\.]+)$ $1.php [NC,L]
RewriteCond %{THE_REQUEST} ^[A-Z]{3,9}\ /(.*)index(\?|\ )
RewriteRule ^ /%1 [L,R=301]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . index [L]
RewriteCond %{THE_REQUEST} ^[A-Z]{3,9}\ /([^/]*/)*index\.(html?|php[45]?)(\?[^\ ]*)?\ HTTP/
RewriteRule ^(([^/]*/)*)index\.(html?|php[45]?)$ http://sitename.com/$1 [R=301,L]
#if query string is empty
RewriteCond %{QUERY_STRING} ^$
#match on / for root, or .index.php in request and send to query string version
RewriteRule ^invoices.php?$ /invoices?status=open [R=301,L]
RewriteCond %{QUERY_STRING} ^$
RewriteRule ^projects.php?$ /projects?status=open [R=301,L]
#RewriteRule ^(/|invoices.php)?$ /invoices?status=open [R=301,L]
#RewriteRule ^(/|projects.php)?$ /projects?status=open [R=301,L]
ErrorDocument 400 /errors.php
ErrorDocument 403 /errors.php
ErrorDocument 404 /errors.php
ErrorDocument 405 /errors.php
ErrorDocument 408 /errors.php
ErrorDocument 500 /errors.php
ErrorDocument 502 /errors.php
ErrorDocument 504 /errors.php