title: Remove index based json object name in php
body: <p>I tried real hard for my title to make sense haha. I have this JSON:</p>
  
  <pre><code>[{
      "0": {
          "id": 130427,
          "created_at": 1512521776301,
          "updated_at": 1512549188911,
          "category": 0,
          "platform": 6,
          "date": 1513987200000,
          "region": 8,
          "y": 2017,
          "m": 12,
          "human": "2017-Dec-23",
          "game": 76663
      },
      "2": {
          "id": 131795,
          "created_at": 1514172411633,
          "updated_at": 1514190849639,
          "category": 0,
          "platform": 39,
          "date": 1513987200000,
          "region": 8,
          "y": 2017,
          "m": 12,
          "human": "2017-Dec-23",
          "game": 78658
      }
  }]
  </code></pre>
  
  <p>As you can see the <strong><em>position</em></strong> of the JSON object in the global json serves as the name of the object and I don't want this. This is what I want: </p>
  
  <pre><code>[{
          "id": 130427,
          "created_at": 1512521776301,
          "updated_at": 1512549188911,
          "category": 0,
          "platform": 6,
          "date": 1513987200000,
          "region": 8,
          "y": 2017,
          "m": 12,
          "human": "2017-Dec-23",
          "game": 76663
      },
      {
          "id": 131795,
          "created_at": 1514172411633,
          "updated_at": 1514190849639,
          "category": 0,
          "platform": 39,
          "date": 1513987200000,
          "region": 8,
          "y": 2017,
          "m": 12,
          "human": "2017-Dec-23",
          "game": 78658
      }
  ]
  </code></pre>
  
  <p>I want the objects without a name. This is the code I'm using: </p>
  
  <pre><code>$json = file_get_contents('./releases.json');
  $data = json_decode($json, TRUE);
  $region = isset($_GET['region']) ? $_GET['region'] : null;
  
  # if region is not null: ?region=8
  if ($region) {
      $region_filter = function($v) use ($region) {
          // 8 == Worldwide
          if ($v['region'] == $region || $v['region'] == 8) {
              return true;
          } else {
              return false;
          }
      };
      $data = array_filter($data['data'], $region_filter);
  }
  
  header('Content-Type: application/json');
  echo json_encode(array($data)); // good
  </code></pre>
  
  <p>Thank you </p>