[wp-hackers] Regenerating re-writes upon migration

[David Anderson]

Hi,

To answer my own question from yesterday...

If you're doing an online replacement (i.e. from within WordPress 
itself) of your own database from another webserver, and want to do a 
best-effort job of regenerating your (possibly non-existent) .htaccess 
file to take account of the possibly different permalink structure in 
the database being imported, then...

This is sufficient:
         global $wp_rewrite;
         $wp_rewrite->init();
         flush_rewrite_rules(true);

Only other thing is that you'll need to hook the the pre_option_ filter 
for the options permalink_structure, rewrite_rules and page_on_front 
options in order to make sure that WordPress gets the data from your 
newly-migrated database instead of from cached settings.

David

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