传递给 Twig_Filter::__construct() 的参数 1 必须是字符串的实例，给定的字符串

2022-01-22 00:00:00 php twig silex

我对 TWIG 有疑问.此代码在学校有效，但绝对不适用于我的笔记本电脑.我尝试了一个简单的代码，但出现错误:

I have a problem with TWIG. This code works at school but absolutely not with my laptop. I tried with a simple code but I have the error:

可捕获的致命错误:传递给 Twig_Filter::__construct() 的参数 1 必须是字符串的实例，给定的字符串，在/opt/lampp/htdocs/webalizer/projetSilex/vendor/twig/twig/lib/Twig/中调用第 139 行的 Extension/Core.php 并在第 35 行的/opt/lampp/htdocs/webalizer/projetSilex/vendor/twig/twig/lib/Twig/Filter.php 中定义

Catchable fatal error: Argument 1 passed to Twig_Filter::__construct() must be an instance of string, string given, called in /opt/lampp/htdocs/webalizer/projetSilex/vendor/twig/twig/lib/Twig/Extension/Core.php on line 139 and defined in /opt/lampp/htdocs/webalizer/projetSilex/vendor/twig/twig/lib/Twig/Filter.php on line 35

我使用 php 5.6/SILEX 2.0/Twig 2.0

I use php 5.6 / SILEX 2.0 / Twig 2.0

感谢您的帮助.

我的代码很简单但是不起作用:

My code is very simple but doesn't work:

require_once __DIR__.'/vendor/autoload.php';

$app = new SilexApplication();
$app->register(new SilexProviderTwigServiceProvider(), array(
'twig.path' => __DIR__.'/views',
  ));

  $app->get('/', function(){
return "hello";
  });

 $app->get('/hello/{name}', function($name)use($app){

 return $app['twig']->render('hello.twig',
                            array("name"=>$name
                                ));

 });

 $app->run();>

推荐答案

@CharlotteDunois 指出了这一点，但是 Twig 2.0 要求 >=PHP7.0，所以在你的环境(php 5.6)中你不能使用 Twig 2.0.来自 Twig 官方文档:

@CharlotteDunois pointed this out, but Twig 2.0 requires >=PHP7.0, so in your environment (php 5.6) you can't use Twig 2.0. From the Twig official documentation:

先决条件

Twig 至少需要 PHP 7.0.0 才能运行.

Twig needs at least PHP 7.0.0 to run.

请注意，对于 PHP5.x 分支，您仍然可以使用 Twig 1.x

Notice that for PHP5.x branch you still have Twig 1.x aviable

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