JSMinPlus::min PHP Method

    private function min($js, $filename)
    {
        try {
            $n = $this->parser->parse($js, $filename, 1);
            return $this->parseTree($n);
        } catch (Exception $e) {
            echo $e->getMessage() . "\n";
        }
        return false;
    }

 public static function minify($js, $filename = '')
 {
     static $instance = null;
     // this is a singleton
     if ($instance === null) {
         $instance = new JSMinPlus();
     }
     return $instance->min($js, $filename);
 }