getting content from database and adding it into a multidimensional array

app.js

App = Ember.Application.create();
App.IndexRoute = Ember.Route.extend({
  model: function() {
       return App.Item.all();  //get the item object and it all() function
   }
});
App.Item = Ember.Object.extend();
App.Item.reopenClass({
	all: function() {
		var links = [];
		$.getJSON("file.json").then(function(response) {
			response.post.forEach(function (child) {
	    			links.pushObject(App.Item.create(child));
	  		});
		});
	  	return links;		
	}
});

file.json

{
    "post": [
        {
            "title": "smathing magazine",
            "description": "some description",
            "url": "http://smashingmag.com"
        },
        {
            "title": "Boagworld",
            "description": "some one",
            "url": "http://boagworld"
        },
        {
            "title": "Css tricks",
            "description": "chris coyer",
            "url": "http://css-tricks.com"
        }
    ]
}

gistfile1.php

$info=array();

while($row = mysqli_fetch_array($result))
  {
    $info['post'][]=$row;
  }

// then adding it to a json file

$posts = array('post' => $posts);

$fp = fopen('file.json', 'w');
  
  fwrite($fp, json_encode($posts));
  fclose($fp);

index.html

<script type="text/x-handlebars" data-template-name="index">
<h2>Welcome to Ember.js test</h2>
<ul>
{{#each link in model}}
    <li>
          <a {{bindAttr href="link.url"}} target="_blank"> {{link.title}} </a>
          <a {{bindAttr href="link.delete"}}> (delete) </a>
    </li>
{{/each}}
    </ul>
</script>

readjs.php

<!-- reading the json file and sorting into a multidimentional array  -->

$string = file_get_contents('http://localhost/2013new/emberforbeg/my/test.json');
$json_articles=json_decode($string,true);

$json_entries = count($json_articles['post']);

foreach ($json_articles as $key => $value){
$posts = array();
  foreach ($value as $key => $values) {
		array_push($posts,
				array(
					'title' => $values['title'],
					'description' => $values['description'],
					'url'  => $values["url"]
				)
			);
	};
}