php example that returns jsonp

get_result.php

<?php
$callback = (isset($_GET['callback'])) ? $_GET['callback'] : 'callback';
$result = (isset($_GET['result'])) ? (int) $_GET['result'] : 0;
$error = (isset($_GET['error'])) ? (int) $_GET['error'] : 0;

$output = array(
	"uid" => uniqid(),
	"result" => $result,
	"error" => $error
);

header("Content-Type: text/javascript; charset=utf-8");
echo $callback . "(" . json_encode($output, JSON_UNESCAPED_UNICODE) . ")";
exit();
?>