一个关于PHP数组和JSON的小问题

Question

如何在一个PHP里把{"song":[{"title":"ht1","picture":"ht2","artist":"ht3","url":"ht4"}]}转换成{"title":"ht1","picture":"ht2","artist":"ht3","url":"ht4"}并显示出来，求一段可运行的完整代码，感激不尽！

Answer 1

$str = json_decode('{"song":[{"title":"ht1","picture":"ht2","artist":"ht3","url":"ht4"}]}',true);

echo json_encode($str['song']);

Answer 2

你要转换的那个不就在你要的json里面吗  直接取出来不就行了？