A few months ago someone posted a note on how MediaWiki logs you off automatically when moving from one copy of MediaWiki to another (usually another language) but within the same subdomain, say from mpkb.net/en to mpkb.net/es (whereas wikipedia uses en.wikipedia.org/wiki and es.wikipedia.org/wiki ) And someone posted in response that a "php cache" differentiation was needed in LocalSettings.php for each copy.
Could someone post a sample configuration of this cache thing? I tried google searching for this topic a with a number of keywords but can't seem to get to the original thread.
Yongho