title: How to parse JSON array in jQuery?
body: <p><strong>EDIT</strong> I checked the jQuery documentation and using $.ajax with the json datatype specified returns an evaluated javascript object, so eval() isn't the answer here.  I knew that anyway, since I am able to parse single JSON objects, just not arrays.  The problem is the $.each-ing my way through them :)</p>
  
  <p>I have followed the syntax for parsing a JSON array in jQuery to the letter, but it doesn't work for some reason.  I am fetching the array using $.ajax, have specified the correct datatype, and in Firebug can see that the response from my PHP script is [].  Yet when I try to use $.each to iterate through the array, all I get is undefined values when I try to console.log various parts of the array.  Here is where my php script makes and encodes the array:</p>
  
  <pre><code>if(mysqli_num_rows($new_res) &gt; 0) {
  $messages = array();
  
  while($message_data = mysqli_fetch_assoc($query_res)) {
    $message = array(
      'poster' =&gt; $message_data['poster'],
      'message' =&gt; $message_data['message'],
      'time' =&gt; $message_data['time']
    );
  
    $messages[] = $message;
  }
  
  echo json_encode($messages);
  } else if(mysqli_num_rows($new_res) == 0) {
  $message = array(
    'poster' =&gt; '',
    'message' =&gt; 'No messages!',
    'time' =&gt; 1
  );
  
  echo json_encode($message);
  }
  </code></pre>
  
  <p>And here is my attempt to parse it:</p>
  
  <pre><code>   var logged_in = '&lt;?php echo $logged_in; ?&gt;';
     var poster = '&lt;?php echo $_SESSION["poster"];?&gt;';
       $.ajax({
       url: 'do_chat.php5',
       type: 'post',
       data: ({'poster':poster,'logged_in':logged_in}),
       dataType: 'json',
       success: function(data) {
           $.each(data, function(messageIndex, message) {
                      console.log(parseInt($('#chatWindow :last-child &gt; span').html())+' '+message['time']);
         if((parseInt(message['time']) &gt; parseInt($('#chatWindow :last-child &gt; span').html()))) {
       $('#chatWindow').append('&lt;div class="poster"&gt;'+message['poster']+'&lt;/div&gt;&lt;div class="message"&gt;&lt;span&gt;'+message['time']+'&lt;/span&gt;'+message['message']+'&lt;/div&gt;');
         }
         });
       }
       });
  </code></pre>
  
  <p>Without the $.each function I am able to successfully parse single JSON objects, but not an array.  This is my first outing with JSON and $.each, and I'm pretty new to jQuery, so go easy if my code has ugly bits!</p>