Dynamischer Pfad new Class

$path = "\Main\Cards"; 
$typeName = ucfirst(substr($this->name, 0, strpos($this->name, '-'))).'Card';
$backSalshWhitSpace = " \ ";
$backSalsh =  str_replace(' ', '', $backSalshWhitSpace);;
$class = $path.$backSalsh.$typeName;
$card = new $class($this->id);
$card->render();