可能重复:
如何访问具有整数等名称的对象属性?
我尝试通过以下代码从 youtube data api 解码 json 结果:
$url="http://gdata.youtube.com/feeds/api/videos/$id?v=2&alt=jsonc";
echo "$url".'<BR>';
$json = file_get_contents($url,0,null,null);
$json_output = json_decode($json);
$items=$json_output -> data;
$content = "{$items->content->1}";
echo $content.'<BR>';
一切正常,但最后两行。有人可以帮忙吗?
这是json结果:
{"apiVersion":"2.1","data":{"id":"9jDg3Dh28rE","uploaded":"2012-10-04T03:45:49.000Z",
........
"content":{"5":"http://www.youtube.com/v/9jDg3Dh28rE?version=3&f=videos&app=youtube_gdata",
"1":"rtsp://v5.cache8.c.youtube.com/CiILENy73wIaGQmx8nY43OAw9hMYDSANFEgGUgZ2aWRlb3MM/0/0/0/video.3gp",
"6":"rtsp://v5.cache4.c.youtube.com/CiILENy73wIaGQmx8nY43OAw9hMYESARFEgGUgZ2aWRlb3MM/0/0/0/video.3gp"},"duration":2403,......}}