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    /**
     * Generates the name for a Dynamic class to be extended from this class
     * @param Form $formModel
     * @param Language $languageModel
     * @param AppVersion $appVersionModel
     * @return string
     */
    public static function generateSafeDynamicClassNameString($formModel, $languageModel, $appVersionModel) {
        return preg_replace('/[^a-zA-Z0-9\']/', '_', $formModel->form_name) .
                preg_replace('/[^a-zA-Z0-9\']/', '_', $languageModel->language_name) .
                preg_replace('/[^a-zA-Z0-9\']/', '_', $appVersionModel->version_name);
    }

    /**
     * Creates a new class based on the form name, language name and app version version name
     * This class is extended from DynamicFormModel
     * @param Form $formModel
     * @param Language $languageModel
     * @param AppVersion $appVersionModel
     * @return string the name of the newley created class
     */
    public static function createDynamicClass($formModel, $languageModel, $appVersionModel) {
        $dynamicClassName = self::generateSafeDynamicClassNameString($formModel, $languageModel, $appVersionModel);
        eval('class ' . $dynamicClassName . ' extends DynamicFormModel {}');
        return $dynamicClassName;
    }

    /**
     * Creates a new class based on the form name, language name and app version version name
     * This class is extended from DynamicFormModel
     * @param Form $formModel
     * @param Language $languageModel
     * @param AppVersion $appVersionModel
     * @return *DynamicallyNamedClass* which extends from DynamicFromModel
     */
    public static function instantiateDynamicObject($formModel, $languageModel, $appVersionModel) {
        if (!$formModel instanceof Form || !$languageModel instanceof Language || !$appVersionModel instanceof AppVersion)
            throw new ErrorException('Invalid parameter given');

        $dynamicClassName = self::createDynamicClass($formModel, $languageModel, $appVersionModel);
        return new $dynamicClassName($formModel, $appVersionModel, $languageModel);
    }
 

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$appVersionModel = AppVersion::model()->findByPk((int) $_POST['appVersionId']);
$formModel = Form::model()->findByPk((int) $_POST['formId']);
$languageModel = Language::model()->findByPk((int) $_POST['languageId']);

$dynamicFormModel = DynamicFormModel::instantiateDynamicObject($formModel, $languageModel, $appVersionModel);
$dynamicClassName = DynamicFormModel::generateSafeDynamicClassNameString($formModel, $languageModel, $appVersionModel);
            
foreach ($_POST[$dynamicClassName] as $attribute => $value) {
     $dynamicFormModel->$attribute = $value;
}