Apache htaccess重写删除子目录上的php扩展

我的htaccess文件位于以下文件夹下：

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到目前为止，我找到了什么代码：

Options +FollowSymLinks -MultiViews
RewriteEngine On

RewriteRule file/edit/(.*)/ file.php?edit=$1
RewriteRule file/edit/(.*) file.php?edit=$1 

RewriteRule file/id/(.*)/ file.php?id=$1
RewriteRule file/id/(.*) file.php?id=$1


# Remove file extension
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME}.php -f
RewriteRule ^(.*)$ $1.php [NC,L]

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我面临的问题：如果我尝试，工作，但没有。您可以使用此。htaccess:

Options +FollowSymLinks -MultiViews
RewriteEngine On

RewriteCond %{THE_REQUEST} \s/+(.+?)\.php\?([^=]+)=([^\s&]+) [NC]
RewriteRule ^ /%1/%2/%3? [R=302,L,NE]

RewriteCond %{THE_REQUEST} \s/+(.+?)\.php\s [NC]
RewriteRule ^ /%1 [R=302,L,NE]

RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^ - [L]

RewriteRule ^file/edit/([^/]+)/?$ file.php?edit=$1  [L,QSA,NC]

RewriteRule ^file/id/([^/]+)/?$ file.php?id=$1 [L,QSA,NC]

# Remove file extension
RewriteCond %{REQUEST_FILENAME}.php -f
RewriteRule ^(.+?)/?$ $1.php [L]

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about.php没有像about或about/：（另一件事，to或working）那样打开。现在，如果有人以某种方式打开，它将显示，内部服务器错误：(