Ouzo\Utilities\Strings::prependIfMissing PHP Method

    public static function prependIfMissing($string, $prefix)
    {
        if (Strings::startsWith($string, $prefix)) {
            return $string;
        }
        return Strings::appendPrefix($string, $prefix);
    }

 public function bind($className, $name = '')
 {
     $className = Strings::prependIfMissing($className, '\\');
     $binder = new Binder($className, $name);
     $this->binders[$className . '_' . $name] = $binder;
     return $binder;
 }