Invalid argument in foreach - php

Question

I am using the following to retrieve comments from FB:
$url = urlencode("http://*****.com/pages/view?id=2153&item=Mens-Collection-Shoes");
$request_url ="https://graph.facebook.com/comments/?ids=" . $url;
$requests = file_get_contents($request_url);
when I print_r($requests); I get the following but cannot work out how to format it with a foreach loop:
{
"http:\/\/*****.com\/pages\/view?id=2153&item=Mens-Collection-Shoes": {
"comments": {
"data": [{
"id": "123456",
"from": {
"name": "Laurelle",
"id": "123456"
},
"message": "I love these",
"can_remove": false,
"created_time": "2012-11-20T10:20:16+0000",
"like_count": 0,
"user_likes": false
} {
"id": "123456",
"from": {
"name": "Dan",
"id": "123456"
},
"message": "I know, just stunning!",
"can_remove": false,
"created_time": "2012-11-20T14:24:15+0000",
"like_count": 0,
"user_likes": false
}],
"paging": {
"next": "https:\/\/graph.facebook.com\/*****\/comments?limit=25&offset=25&__after_id=*****"
}
}
}
}
I'm trying to get:
data->from->id
data->from->name
data->message
data->created_time
I've tried:
$fb_response = json_decode($requests);
foreach($fb_response->data as $item){
echo $item->from->id . '<br />';
echo $item->from->name . '<br />';
echo $item->message . '<br />';
echo $item->created_time . '<br /><br />';
}
But no luck

Answer 1

I think you're looking for:
$originalUrl = "http://*****.com/pages/view?id=2153&item=Mens-Collection-Shoes";
$url = urlencode($originalUrl);
...
foreach($fb_response->$originalUrl->comments->data as $item) {
data isn't the name of a property directly inside the JSON document; it's under http://*****.com/pages/view?id=2153&item=Mens-Collection-Shoes and comments.