Multiple WP sites in subfolders on IIS may break permalinks

[WiZZarD_]

When installing WP in a subfolder of an existing blog you will end up breaking the site in the subfolder after enabling permalinks. This is caused by a duplicate name in the rewrite rule for the different folders. The easiest way to fix this would be to change the rule name by adding a site-specific identifier.

I've added a patch that uses get_bloginfo( 'wpurl' ) to create a unique identifier. Also, I've corrected the capitalization of WordPress, since it was all lowercase.

[WiZZarD_]

patch for class-wp-rewrite.php

[Ixium]

Works like a charm. After deleting the existing web.config and applying the patch, the correct web.config is written when setting a new-permalink structure.

[johnbillion]

Thanks for the patch, @WiZZarD_ (and welcome to WordPress Trac).

A slight improvement would be to use "WordPress: ' . home_url() . '" to avoid using any natural language, and to use the newer home_url() function which is now preferred over get_bloginfo(). Apart from that, this change makes sense.

[johnbillion]

In 36953:

Rewrite Rules: Allow rewrite rules to work in nested WordPress installations on IIS.

Props WiZZarD_
Fixes #35558