WordPress core in a subdirectory, but accessed via the root folder
If you're trying to move WP to a subdirectory, but access it from the root, use the following approach.
Keep your index file in the root, but point it to the proper path:
./SUBDIRECTORY/wp-blog-header.php instead of
Make sure you change you change the
siteurl settings to match your directory structure either in Settings->General or by adding the following to your wp-config.php file:
WordPress completely isolated to a subdirectory
If you would like to keep WP completely in the subdirectory, just move your .htaccess index.php files to the sub instead of the root. As long as it doesn't conflict with the root .htaccess, it should work just fine. You can have nested .htaccess files within subdirectories and permalinks should work just fine.