Manual:$wgLocalFileRepo

Properties required for all repos

 * class

The class name for the repository. May come from the core or an extension. The core repository classes are FileRepo, LocalRepo, ForeignDBRepo. (FSRepo is also supported for backwards compatibility.)
 * name

Should be set to  .

For all core repos

 * url

Base public URL
 * hashLevels

The number of directory levels for hash-based division of files (see  for info)
 * thumbScriptUrl

The URL for thumb.php (optional, not recommended)
 * transformVia404

Whether to skip media file transformation on parse and rely on a 404 handler instead.
 * initialCapital

Equivalent to , determines whether filenames implicitly start with a capital letter. The current implementation may give incorrect description page links when the local  and initialCapital are mismatched.
 * pathDisclosureProtection

May be 'paranoid' to remove all parameters from error messages, 'none' to leave the paths in unchanged, or 'simple' to replace paths with placeholders. Default for LocalRepo is 'simple'.

Default value
This code, in Setup.php, generates a default value for  based on the values of other configuration settings:

if ( !$wgLocalFileRepo ) { if ( isset( ['deleted']['hash'] ) ) { $deletedHashLevel = ['deleted']['hash']; } else { $deletedHashLevel = ? 3 : 0;    }     $wgLocalFileRepo = array(         'class' => 'LocalRepo',         'name' => 'local',         'directory' =>,         'scriptDirUrl' => ,         'scriptExtension' => ,         'url' =>  ?  .  : ,         'hashLevels' =>  ? 2 : 0,         'thumbScriptUrl' => ,         'transformVia404' => !,         'deletedDir' => ,         'deletedHashLevels' => $deletedHashLevel     ); }