Manual:$wgSitesCacheFile

Server URLs and file paths: $wgSitesCacheFile
Specify the file location for the site's JSON cache file.
Introduced in version:1.25.0 (Gerrit change 174874; git #90f6efc3)
Removed in version:1.33.0 (Gerrit change 496568; git #I8e2d9ed)
Allowed values:(boolean)
Default value:false