如何添加扩展在树枝中添加全局

Question

当我尝试在树枝中添加扩展添加全局时

$view = new \Slim\Views\Twig($settings['template_path'], [
    'debug' => $settings['debug'],
    'cache' => $settings['cache_path']
]);
// Add extensions
$view->addExtension(new \Slim\Views\TwigExtension(
    $c['router'],
    $c['request']->getUri()
));
$view->addExtension(new \Core\TwigFunction());  
$view->addExtension(new Twig_Extension_Debug());
$view = new Twig_Environment();;
$view->addGlobal('session', $_SESSION);

我收到：

调用未定义的方法 Twig_Environment::offsetSet()

Answer 1

在一行

$view = new Twig_Environment();

您正在覆盖 $view 变量。删除该行应该可以解决问题，因为 slim/twig-view 会为您设置 Twig 环境。