This setting lists allowable "import sources" forinterwiki import.It contains interwiki prefixes for wikis from which pages can be imported using Special:Import.Since complete page history can be imported, these wikis should be "trusted".

The transwiki import interface is available to users with the "import"right.

$wgImportSources can be a simple flat array that contains valid interwiki prefixes.This example allows import from Wikinews, Wikiquote, Wikipedia, and an additional wiki that has been added to the interwiki map:

$wgImportSources=['wikinews','wikiquote','wikipedia','myotherwiki'];

For more complex scenarios, a two-level array can be used.Sites can be listed as standalone wikis (likewikispecies in the example below), or they can be listed as projects with a list of subprojects (for example, the Wikipedia project with Czech, English, etc. subprojects).

Note that the subproject prefixes are resolved using theother wiki's interwiki map – so in the example below,wikia would be looked up in your wiki's interwiki map, while the subproject prefix (animanga etc) would be handed off to thewikia site for an additional redirection.

$wgImportSources=['wikipedia'=>['cs','en','fr','zh'],'wikispecies','wikia'=>['animanga','brickipedia','desserts'],];

For even more advanced scenarios, you can use theImportSources hook.

• $wgImportTargetNamespace

• MediaWiki configuration settings
• MediaWiki configuration settings introduced in version 1.3.0
• MediaWiki configuration settings still in use
• Import/Export variables