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我在我的应用程序中收到此错误,但找不到失败的地方:

试图从全局命名空间调用函数“replace”。

这是堆栈跟踪:

[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 }

这是课程:

<?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';
    }
}

怎么了?我找到了这篇文章,但对我的情况没有帮助

4

1 回答 1

4

从错误中,您似乎已经注册了一个名为 的过滤器replace,但您正试图将其作为函数调用。

所以这应该已经起作用了(但我认为这不是你想要做的):

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

我认为您正在尝试做的是:

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

要注册一个函数,请添加一个调用getFunctions到您的AppTwigExtension类的方法,并将replace定义移至该类。有关更多详细信息,请参阅文档

于 2015-04-20T18:03:55.350 回答