问题描述
我们正在建立一个Symfony 2应用程序,从控制器发送一些数据:
控制器
<$ (
'levels'=>数组(
'warning'=> 0.05 ,
'danger'=> 0.10,
),
),
);
return $ this-> render(
'MyWebsiteBundle:Core:searchResults.html.twig',
array(
'userJSON'=> json_encode $ user)
)
);
查看
< script language =javascript>
user = $ .parseJSON({{userJSON}});
< / script>
结果
在 dev
结果看起来像这样,按预期工作:
user = $ .parseJSON \x7B\x22configuration\x22\x3A\x7B\x22levels\x22\x3A\x7B\x22warning\x22\x3A0.05,\x22danger\x22\x3A0。 1\x7D\x7D\x7D);
另一方面,在 prod
结果以不同的方式编码,从而在控制台中显示错误:
user = $ .parseJSON({&配置&安培; QUOT;:{&安培; QUOT;水平&安培; QUOT;:{&安培; QUOT;警告&安培; QUOT;:0.05,&安培; QUOT;危险&安培; QUOT;:0.1}}});
控制台错误:未捕获语法错误:意外的令牌&
什么产生这种差异?
编辑:还请查看@ Lulhum的解决方案。如果它更好的话,最好选择它,所以我将选择它作为正确的答案。
问题是Twig自变量变量。我使用Twig的原始
过滤器来跳过自动转义:
script language =javascript>
user = $ .parseJSON('{{userJSON | raw}}');
< / script>
现在打印:
user = $ .parseJSON('{configuration:{levels:{warning:0.05,danger:0.1}}}');
链接:
We're building a Symfony 2 application that sends some data from controller to view:
Controller
$user = array(
'configuration' => array(
'levels' => array(
'warning' => 0.05,
'danger' => 0.10,
),
),
);
return $this->render(
'MyWebsiteBundle:Core:searchResults.html.twig',
array(
'userJSON' => json_encode($user)
)
);
View
<script language="javascript">
user = $.parseJSON("{{ userJSON }}");
</script>
Result
On dev
the result looks like this and works as expected:
user = $.parseJSON("\x7B\x22configuration\x22\x3A\x7B\x22levels\x22\x3A\x7B\x22warning\x22\x3A0.05,\x22danger\x22\x3A0.1\x7D\x7D\x7D");
On the other hand, on prod
the result is encoded in a different manner, thus displaying errors in console:
user = $.parseJSON("{"configuration":{"levels":{"warning":0.05,"danger":0.1}}}");
Console Error: Uncaught SyntaxError: Unexpected token &
What generates this difference?
Edit: Also check @Lulhum's solution below. Up-vote it if it's better so I will select it as the correct answer.
The "problem" was Twig autoescaping variables. I used Twig's raw
filter to skip autoescaping like this:
<script language="javascript">
user = $.parseJSON('{{ userJSON | raw }}');
</script>
Now it prints:
user = $.parseJSON('{"configuration":{"levels":{"warning":0.05,"danger":0.1}}}');
Links:Symfony 2 Docs - Output escaping
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