php中如何解析json输入（yii框架）

Question

我有如下的 JSON 输入：

$json='{"PollQuestion":"Which is biggest country","Isactive":1,"options":[{"option":"abc"},{"option":"xyz"},{"option":"acssr"}]}'
$obj=json_encode($json);

那么如何访问选项字段和单个选项？我想把这些选项放在选项表中。请帮助我在 php（Yii 框架）中解析这个 json 输入。

Answer 1

$json='{"PollQuestion":"Which is biggest country","Isactive":1,"options":[{"option":"abc"},{"option":"xyz"},{"option":"acssr"}]}';

$decode = json_decode($json, true);
echo $decode['PollQuestion'];