Jarves\Configuration\Model::setVar PHP Method

    public function setVar($variableName)
    {
        $element = $this->getDirectChild($variableName);
        if ($element) {
            $setter = 'set' . ucfirst($variableName);
            $value = $element->nodeValue;
            if (method_exists($this, $setter)) {
                $this->{$setter}($value);
            }
        }
    }