.htaccess URL重写后缀删除

when I attempt to remove the suffix .html from

RewriteRule ^([^/]*)\.html$ /images.php?id=$1 [L]

it just breaks all the code, how should I go about fixing this?

I'm basically trying to get an image id, which is already done, but the suffix is stuck there.

Where I header to the tag -

        echo header( "Location: http://example.com/$newfilename.html");