从数组中渲染单个数据

Question

{{dump(states)}} 这个 returns

FormView {#5921 ▼
  +vars: array:33 [▼
    "value" => []
    "attr" => []
    "form" => FormView {#5921}
    "id" => "States"
    "name" => "States"
    "full_name" => "States"
    "disabled" => false
    "compound" => false
    "method" => "POST"
    "action" => ""
    "preferred_choices" => []
    "choices" => array:41 [▶]
    ]
  +parent: FormView {#5618 ▶}
  +children: []
  -rendered: false
  -methodRendered: false
}

我想显示选择选项的状态 35.how 以从有 41 个选择的数组中获得单一选择？

Answer 1

您可以使用 . 或 [] 语法访问 twig 中的数组成员。

因此你选择数组的第 35 个选项可以在 twig 中呈现如下：

{{ states.vars.choices[34] }}

有关如何访问 twig 中的数组成员的更多信息，请查看 this article from knpuniversity

从数组中渲染单个数据

Rendering single data from an array

php

twig

symfony-3.2