我有以下网址:
https://graph.facebook.com/123456/likes?access_token=__ACCESS_TOKEN__&format=json
然后我做了:
$likesList = json_decode(file_get_contents("https://graph.facebook.com/123456/likes?access_token=$access_token&format=json"),true);
产生例如
{
"data": [
{
"name": "yo yo yo",
"category": "Entertainer",
"id": "45640987076",
"created_time": "2012-04-18T16:14:09+0000"
},
{
"name": "Tony Smith",
"category": "Musician/band",
"id": "456456456456",
"created_time": "2012-02-22T06:56:18+0000"
},
{
"name": "Stations",
"category": "Company",
"id": "567657567",
"created_time": "2012-01-30T23:08:39+0000"
}
]
}
然后我要列出例如所有返回的名字都是这样的:
foreach ($likesList->data as $element2){
$name = $element2[name];
echo $name;
}
但它是空的?
答案 0 :(得分:3)
请参阅数据结构的this visualization。
当您收到阵列时,您需要$list["data"]
而不是$list->data
。另外,不要忘记引用数组键"name"
。
答案 1 :(得分:2)
foreach ($likesList['data'] as $element2){
$name = $element2['name'];
echo $name;
}
在参数为true的json_decode之后,您将拥有关联数组。您可以通过字符串键访问值。就像上面的例子一样。