事情变得更加复杂，现在：）

Things are getting more complicated now :)

试试这个code在你的.htaccess：

Try this code in your .htaccess:

RewriteEngine On
RewriteBase /site/public/admin/

RewriteCond %{REQUEST_METHOD} POST
RewriteRule ^ - [L]

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

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^([^/]+)/caseid/([^/]+)/picid/([^/]+)/?$ $1.php?caseid=$2&picid=$3 [L,NC,QSA]

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

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^([^/]+)/caseid/([^/]+)/?$ $1.php?caseid=$2 [L,NC,QSA]

## hide .php extension snippet    
# To externally redirect /dir/foo.php to /dir/foo
RewriteCond %{THE_REQUEST} \s([^.]+)\.php [NC]
RewriteRule ^ %1/ [R=302,L,NE]

# add a trailing slash
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule [^/]$ %{REQUEST_URI}/ [L,R=301,NE]

# To internally forward /dir/foo to /dir/foo.php
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME}.php -f
RewriteRule ^(.+?)/?$ $1.php [L]