Instagram PHP and Json decode

Hello I'm trying to build a PHP app using Json decode to get all the Instagram recent data. I can get almost all the posts info, but the users tagged in the photo is not working, please check the examples:

1. Example that works:

Json:

"link": "................",
"likes": {
"count": 869,
"data": [
{
"username": "alucena03",
"profile_picture": "............12357762_502957436496239_1249144480_a.jpg",
"id": "2360193393",
"full_name": "gabriel alejandro"
}

PHP - it gets the links and the likes count with no problem:

$link = $vm["link"];
$likes = $vm['likes']['count'];


2. Example that don't work -PELASE HELP - GET USERS_IN_PHOTO:

Jason that I want to get:

"users_in_photo": [
{
"position": {
"y": 0.03670266,
"x": 0.03668111
},
"user": {
"username": "retratosvzla",
"profile_picture": "..................../t51.2885-19/s150x150/10522832_873539719420276_688293547_a.jpg",
"id": "589009961",
"full_name": "Rene Flores"
}
}
],

PHP - That diren't work:

$userinphoto = $vm['users_in_photo']['user']['username'];

i am trying to get the username



Please any help would be very helpful! Thanks!

"users_in_photo" is a array
You shound try $userinphoto = $vm['users_in_photo'][0]['user']['username'];