'wgCheckFileExtensions' => $config->get( 'CheckFileExtensions' ),
'wgStrictFileExtensions' => $config->get( 'StrictFileExtensions' ),
'wgFileExtensions' => array_values( array_unique( $config->get( 'FileExtensions' ) ) ),
'wgCheckFileExtensions' => $config->get( 'CheckFileExtensions' ),
'wgStrictFileExtensions' => $config->get( 'StrictFileExtensions' ),
'wgFileExtensions' => array_values( array_unique( $config->get( 'FileExtensions' ) ) ),