Manual:$wgThumbPath

From Linux Web Expert

<translate> Server URLs and file paths</translate>: $wgThumbPath
The base path for thumb_handler.php.
<translate> Introduced in version:</translate>1.35.1 (Gerrit change 636703; git #df95c45a)
<translate> Removed in version:</translate><translate> still in use</translate>
<translate> Allowed values:</translate><translate> Unspecified</translate>
<translate> Default value:</translate>false

Details

The base path for thumb_handler.php. This is used to interpret the request URL for requests to thumb_handler.php that do not match the base upload path.

This was introduced in MediaWiki 1.36.0 (Gerrit change 636703). It was backported to 1.35.1 (Gerrit change 636798).