This is a simple PHP library to render Git diff output as div-based HTML output. Features:

• Clipboard copy from either side (often diff libraries intermingle left/right, making copying difficult)
• Line numbering (can be turned off)
• Sections without changes are indicated
• CSS output is easily restyled
• A suite of browser-based tests using jQuery's QUnit

A demo file is included, or you can simply do something like this:

<?php

// Grab diff output from the git binary
$diffStr = `git diff changedfile`;

// Analyse it here
$gitDiff = new \ilovephp\DiffPage();
$gitDiff->parseDiff($diffStr);

// Turn line numbers off if required (default = on)
$gitDiff->setEnableLineNumbers(false);

// Render it here
$gitDiff->render();

Requires PHP 5.3 on later.

I'm testing against latest Firefox/Ubuntu, but would like all major latest browsers to work. Please let me know if any tests fail in your browser, or a diff rendering doesn't look right.

License is GPL2 or later.