return json data from php for emberjs in the right format with $.getJSON

问题

I looked at this tutorial

and tried to create my own php side script to generate json data.

However, I failed on creating a multi-level array.

In the example, a json result of

{
  "nextId": null,
  "items": [{
          "title": "Docker, the Linux container runtime: now open-source",
          "url": "http://docker.io",
          "id": 5445387,
          "commentCount": 39,
          "points": 146,
          "postedAgo": "2 hours ago",
          "postedBy": "shykes"
      }, {
          "title": "What\u0027s Actually Wrong with Yahoo\u0027s Purchase of Summly",
          "url": "http://hackingdistributed.com/2013/03/26/summly/",
          "id": 5445159,
          "commentCount": 99,
          "points": 133,
          "postedAgo": "2 hours ago",
          "postedBy": "hoonose"
      },
  ],
  "version": "1.0",
  "cachedOnUTC": "\/Date(1364333188244)\/"
}

was generated, I could use $resultJSON= json_encode($resultArray); to generate the inner level, which is title, url, id and such, but not 'items' object. I want to know, whether the items object comes from the table's name or it is created by encoding a generated array data from an array? I use data encoded as json from this php file:

$query = "SELECT user_id, username, legacy_id, date_created
FROM eq_user";
$result = mysqli_query($connection, $query);
$numRows = mysqli_num_rows($result);
$resultArray = mysqli_fetch_assoc($result);
$resultJSON= json_encode($resultArray);
echo $resultJSON;

The emberjs app will be like

App.Item.reopenClass({
  all: function() {
      return $.getJSON("/get_data.php").then(function(response) {
        var items = [];                     
        response.items.forEach( function (item) {
          items.push( App.Item.create(item) );
        });

          return items;
      });
  }
});

NOTE: the items is the object I think, but I do not know how it can be generated correctly in php as json data as multi-level array.

Also, one more question, should I use json_encode or not? Because I saw tutorial mentioning that Emberjs uses jsonp... is it a special format? How should I approach this jsonp in PHP?

Thanks!

回答1:

You can simply do

 $resultArray = array();
 while ($row = mysqli_fetch_assoc($result)) {
    $resultArray[] = $row;
 }

 $resultJSON= json_encode(array("items"=>$resultArray));

Good luck

来源：https://stackoverflow.com/questions/19791068/return-json-data-from-php-for-emberjs-in-the-right-format-with-getjson

标签

jquery

ajax

json

ember.js

jsonp