Sample stand-alone Assetic usage

example.php

$name       = 'js';
$outputPath = 'assets/js/cache';
$assets     = array(
    'file1.js',
    'file2.js',
);

$filterManager = null;
// $filterManager = new \Assetic\FilterManager();
// $filterManager->set('cssrewrite', new \Assetic\Filter\CssRewriteFilter());

// -------------------------------------------------------- //

$factory = new \Assetic\Factory\AssetFactory(DOCROOT);
$am      = new \Assetic\Factory\LazyAssetManager($factory);
$worker  = new \Assetic\Factory\Worker\CacheBustingWorker($am);
$filters = array();

if ($filterManager instanceof \Assetic\FilterManager) {
    $factory->setFilterManager($filterManager);
    $filters = $filterManager->getNames();
}

$factory->addWorker($worker);

$outputPath = trim($outputPath, '/');

$asset = $factory->createAsset($assets, $filters, array(
        'name' => $name,
        'output' => $outputPath.'/*',
    ));

$writer = new \Assetic\AssetWriter(DOCROOT);
$writer->writeAsset($asset);