如何在树枝模板中设置数组值

Question

如何通过树枝模板中的字符串索引更改数组值？我想：

{% do params['redirect_uri'] = 'http://site.loc/' %} 

，但我得到NEX错误：

Unexpected token "operator" of value "=" ("end of statement block" expected) in 
BWUserBundle:User/social:sign-in-thumbs.html.twig at line 4 

我也想：

{% set params['redirect_uri'] = 'http://site.loc/' %} 

，但有错误太：

Unexpected token "punctuation" of value "[" ("end of statement block" expected) in 
BWUserBundle:User/social:sign-in-thumbs.html.twig at line 4 

任何想法？

Answer 1

怎么样，

{% set params = params|merge({'redirect_uri': 'http://site.loc/'}) %}