I need to get the first item from the field in the twig template. Is there some kind of function?
我需要从twig模板中的字段中获取第一个项。有什么功能吗?
3 个解决方案
#1
67
Yes, there is, it is called first. The rest is copied from the documentation.
是的，有，它叫第一。其余部分是从文档中复制的。
New in version 1.12.2: The first filter was added in Twig 1.12.2.
新版本1.12.2:第一个过滤器添加在Twig 1.12.2中。
The first filter returns the first "element" of a sequence, a mapping, or a string:
第一个过滤器返回序列、映射或字符串的第一个“元素”:
{{ [1, 2, 3, 4]|first }}
{# outputs 1 #}
{{ { a: 1, b: 2, c: 3, d: 4 }|first }}
{# outputs 1 #}
{{ '1234'|first }}
{# outputs 1 #}
It also works with objects implementing the Traversable interface.
它还与实现可遍历接口的对象一起工作。
#2
3
I was looking to get the last element of an array with twig and found this question and found out Twig has a last as well.
我在寻找一个带有twig的数组的最后一个元素，找到了这个问题，发现twig也有最后一个元素。
#3
0
At Twig documentation: http://twig.sensiolabs.org/doc/filters/first.html, you can find the better answer and other related thing also.
在Twig文档:http://twig.sensiolabs.org/doc/filters/first.html，您可以找到更好的答案和其他相关的东西。
#1
67
Yes, there is, it is called first. The rest is copied from the documentation.
是的，有，它叫第一。其余部分是从文档中复制的。
New in version 1.12.2: The first filter was added in Twig 1.12.2.
新版本1.12.2:第一个过滤器添加在Twig 1.12.2中。
The first filter returns the first "element" of a sequence, a mapping, or a string:
第一个过滤器返回序列、映射或字符串的第一个“元素”:
{{ [1, 2, 3, 4]|first }}
{# outputs 1 #}
{{ { a: 1, b: 2, c: 3, d: 4 }|first }}
{# outputs 1 #}
{{ '1234'|first }}
{# outputs 1 #}
It also works with objects implementing the Traversable interface.
它还与实现可遍历接口的对象一起工作。
#2
3
I was looking to get the last element of an array with twig and found this question and found out Twig has a last as well.
我在寻找一个带有twig的数组的最后一个元素，找到了这个问题，发现twig也有最后一个元素。
#3
0
At Twig documentation: http://twig.sensiolabs.org/doc/filters/first.html, you can find the better answer and other related thing also.
在Twig文档:http://twig.sensiolabs.org/doc/filters/first.html，您可以找到更好的答案和其他相关的东西。