EDIT 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 :)
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 $.each to iterate through the array, all I get is undefined values when I try to console.log various parts of the array. Here is where my php script makes and encodes the array:
if(mysqli_num_rows($new_res) > 0) {
$messages = array();
while($message_data = mysqli_fetch_assoc($query_res)) {
$message = array(
'poster' => $message_data['poster'],
'message' => $message_data['message'],
'time' => $message_data['time']
);
$messages[] = $message;
}
echo json_encode($messages);
} else if(mysqli_num_rows($new_res) == 0) {
$message = array(
'poster' => '',
'message' => 'No messages!',
'time' => 1
);
echo json_encode($message);
}
And here is my attempt to parse it:
var logged_in = '<?php echo $logged_in; ?>';
var poster = '<?php echo $_SESSION["poster"];?>';
$.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 > span').html())+' '+message['time']);
if((parseInt(message['time']) > parseInt($('#chatWindow :last-child > span').html()))) {
$('#chatWindow').append('<div class="poster">'+message['poster']+'</div><div class="message"><span>'+message['time']+'</span>'+message['message']+'</div>');
}
});
}
});
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!