Manual:$wgUploadMissingFileUrl

Files and file uploads: $wgUploadMissingFileUrl
Point wikilinks to missing files ("red file links") to a custom URL.
Introduced in version:	1.17.0 (r69997)
Removed in version:	still in use
Allowed values:	(URL) or false
Default value:	false
Other settings: Alphabetical | By function

Usage

Use this setting to point wikilinks to missing files ("red file links") to a custom URL, as with $wgUploadNavigationUrl . The URL will get (?|&)wpDestFile=<filename> appended to it as appropriate.

If false, the value of $wgUploadNavigationUrl is used. If that too is false, Special:Upload is used.

MediaWiki version:

≤ 1.19

$wgUploadNavigationUrl was used before this setting was introduced (1.16 and below), and will be used if $wgUploadMissingFileUrl is not defined (from 1.19 onwards). For 1.17 and 1.18 you have to set $wgUploadMissingFileUrl.

See also

• $wgEnableUploads - set this to false to disable uploads completely.