getcss.php

<?php
// put this into "dev/less/getcss.php"
// checkout lessphp into src/vendor: git clone git://github.com/leafo/lessphp.git
// add "Alias /dev/ /home/you/src/joiz/dev/" to your vhost
// add "RewriteRule ^main.css$ dev/less/getcss.php?cssfile=main [L]" to your vhost or .htaccess
// create app/config/main.less, use imports into your bundles (Resources/data/less/*)
// browse to http://[yourdomain]/main.css

$lessCompiler = __DIR__.'/../../src/vendor/lessphp/lessc.inc.php';
if (!include $lessCompiler) {
    echo "// less class definition not found: ".$lessCompiler;
    exit;
}

if (empty($_GET['cssfile'])) {
    echo "// cssfile GET parameter missing";
    exit;
}

if (!preg_match('/^[a-z_]+$/i', $_GET['cssfile'])) {
    echo "// cssfile GET parameter illegal: ".$_GET['cssfile'];
    exit;
}

$input = __DIR__.'/../../app/config/'.$_GET['cssfile'].'.less';
$cacheFile = __DIR__.'/../../app/cache/dev/cache_'.$_GET['cssfile'].'.less';

try {
    $time = 0;
    if (file_exists($cacheFile)) {
        $input = unserialize(file_get_contents($cacheFile));
        $time = $input['updated'];
    }
    $cache = lessc::cexecute($input);
    if ($time < $cache['updated']) {
        file_put_contents($cacheFile, serialize($cache));
    }
    echo $cache['compiled'];
} catch (exception $e) {
    echo "// While compiling $input, encountered: ".$e->getMessage();
    exit;
}