array( "{$rootDir}/roojs1/css-bootstrap/bootstrap.css", "{$rootDir}/roojs1/css-bootstrap/bootstrap.min.css" ), "{$rootDir}/roojs1/less/roojs-bootstrap/roojs-bootstrap.less" => array( "{$rootDir}/roojs1/css-bootstrap/roojs-bootstrap-debug.css", "{$rootDir}/roojs1/css-bootstrap/roojs-bootstrap.css" ) ); require_once 'HTML/Less.php'; $less = new HTML_Less(); foreach ($files as $src => $file){ if(!file_exists($src)){ echo "{$src} does not exist...\n"; continue; } try { foreach ($file as $f){ echo "Compiling - {$src} To {$f}\n"; $less->compileFile($src, $f); } } catch (Exception $ex) { echo "lessphp fatal error: {$ex->getMessage()}\n"; } }