Neos\Flow\Mvc\View\JsonView::renderArray PHP Method

    protected function renderArray()
    {
        if (count($this->variablesToRender) === 1) {
            $variableName = current($this->variablesToRender);
            $valueToRender = isset($this->variables[$variableName]) ? $this->variables[$variableName] : null;
            $configuration = isset($this->configuration[$variableName]) ? $this->configuration[$variableName] : [];
        } else {
            $valueToRender = [];
            foreach ($this->variablesToRender as $variableName) {
                $valueToRender[$variableName] = isset($this->variables[$variableName]) ? $this->variables[$variableName] : null;
            }
            $configuration = $this->configuration;
        }
        return $this->transformValue($valueToRender, $configuration);
    }