<?php
$json='{
"stat": "ok",
"profile": {
"providerName": "testing",
"identifier": "http://testing.com/58263223",
"displayName": "testing",
"preferredUsername": "testing",
"name": {
"formatted": "testing"
},
"url": "http://testing.com/testing/",
"photo": "https://securecdn.testing.com/uploads/users/5826/3223/avatar32.jpg?1373393837",
"providerSpecifier": "testing"
}
}';
$data=json_decode($json ,true);
$preferredUsername=$data['profile']['preferredUsername'];
$displayName=$data['profile']['displayName'];
?>