Symfony2 + Twig:尝试调用函数"替换"来自全局命名空间

时间:2015-04-20 17:48:37

标签: php symfony twig symfony-2.6 symfony-2.7

我在我的应用中收到此错误,但无法找到我失败的地方:

  

尝试调用函数"替换"来自全局命名空间。

这是Stacktrace:

[1] Symfony\Component\Debug\Exception\UndefinedFunctionException: Attempted to call function "replace" from the global namespace.
    at n/a
        in /var/www/html/reptooln_admin/app/cache/dev/twig/eb/76/c3cb3f071f775598b83974700b4a2523941a76b0f3cf8801d01d9210eae0.php line 318

现在在我的代码中我定义了这个Twig扩展:

services:
    app.twig.extension:
        class: AppBundle\Extension\AppTwigExtension
        tags:
            -  { name: twig.extension }

这是班级:

<?php

namespace AppBundle\Extension;

class AppTwigExtension extends \Twig_Extension
{
    public function getFilters()
    {
        return array(
            'var_dump'   => new \Twig_Filter_Function('var_dump'),
            'empty' => new \Twig_Filter_Function('empty', array($this, 'is_empty')),
            'isset' => new \Twig_Filter_Function('isset', array($this, 'is_set')),
            'isnull' => new \Twig_Filter_Function('isnull', array($this, 'is_null')),
            'ucfirst' => new \Twig_Filter_Function('ucfirst', array($this, 'uc_first')),
            'ucwords' => new \Twig_Filter_Function('ucwords', array($this, 'uc_words')),
            'count' => new \Twig_Filter_Function('count', array($this, 'co_unt')),
            'sizeof' => new \Twig_Filter_Function('sizeof', array($this, 'size_of')),
            'concat' => new \Twig_Filter_Function('concat', array($this, 'concat')),
            'in_array' => new \Twig_Filter_Function('in_array', array($this, 'inarray')),
            'array' => new \Twig_Filter_Function('array', array($this, 'array_')),
            'add_to_array' => new \Twig_Filter_Function('add_to_array', array($this, 'add_to_array')),
            'replace' => new \Twig_Filter_Function('replace', array($this, 'replace')),
            'htmlentitydecode' => new \Twig_Filter_Function('htmlentitydecode', array($this, 'htmlentitydecode')),
        );
    }

    public function replace($subject, $search, $replace)
    {
        return str_replace($search, $replace, $subject);
    }
    // functions goes here

    public function getName()
    {
        return 'app_twig_extension';
    }
}

有什么问题?我找到了this帖子但在我的案例中没有帮助

1 个答案:

答案 0 :(得分:4)

从错误中,您似乎注册了一个名为replace的过滤器,但您尝试将其称为函数。

所以这应该已经有效(但我认为这不是你想做的):

{{ my_variable|replace('something', 'with', 'this') }}

我认为你要做的是:

{{ replace(my_variable, 'replace', 'this') }}

要注册一个函数,请在getFunctions类中添加一个名为AppTwigExtension的方法,并将replace定义移到该类。有关详细信息,请参阅documentation