Manual:thumb.php

thumb.php is a script used for creating and streaming thumbnails.

To use it, set $wgThumbnailScriptPath to the path of this file.

Parameters are f for file name, w for width, p for page in multipaged files (if available).

Example: https://commons.wikimedia.org/w/thumb.php?f=Delle_strade_ferrate_e_della_loro_futura_influenza_in_Europa.djvu&w=600&p=206

This script can also be used as a 404 handler to generate image thumbs when they don't exist. To use it, follow the steps below, then set $wgGenerateThumbnailOnParse to false. If you have $wgLocalFileRepo defined in LocalSettings.php, then you need to also set:

$wgLocalFileRepo['transformVia404'] = true;

Example: https://www.mediawiki.org/w/thumb.php?f=example.jpg&width=100

Just add the following code to the bottom of LocalSettings.php .

$wgThumbnailScriptPath = "$wgScriptPath/thumb.php";

No web server configuration needed. This will cause thumb.php to either return the file if its already been rendered, or render the file on demand if needed.

• $wgThumbnailScriptPath
• thumb_handler.php - 404 handler