I first write the JSON:
$arr = array ('a'=>1,'b'=>2,'c'=>3,'d'=>4,'e'=>5);
print json_encode(array(
"array" => $arr
));
Then in the jQuery I do:
j.post("notifications.php", {}, function(data){
Now this is where I'm a little confused, as I would normally do:
data.array
To get the data, but I'm not sure how to handle the array. data.array[1] didn't work.
Thanks!
PHP's associative arrays become objects (hashes) in javascript.
data.array.a === 1
data.array.b === 2
// etc
If you want to enumerate over these values
for ( var p in data.array )
{
if ( data.array.hasOwnProperty( p ) )
{
alert( p + ' = ' + data.array[p] );
}
}
@Peter already explained, that associative arrays are encoded as JSON objects in PHP.
So you could also change your PHP array to:
$arr = array(1,2,3,4,5); // or array('a', 'b', 'c', 'd', 'e');
However, another important point is to make sure that jQuery recognizes the response from the server as JSON and not as text. For that, pass a fourth parameter to the post() function:
j.post("notifications.php", {}, function(data){...}, 'json');
console.log()with Firebug on? It should show you how the data is received on the JS end.