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<?php$firstname = isset($_GET['firstname']) ? $_GET['firstname'] : '';
 if ($firstname == 'Jeff') {
 header("Content-Type: application/json");
 $data = array('fullname' => 'Jeff Hansen', 'message' => '\a aaâ " ^><*&@ { })( ;');
 //echo $_GET['callback'] . '(' . "{'fullname' : 'Jeff Hansen'}" . ')';
 echo $_GET['callback'] . '(' . json_encode($data) . ')';
 exit;
 }
 ?>
 <!DOCTYPE html>
 <html lang="en">
 <head>
 <meta charset="utf-8" />
 <title>jsonp example</title>
 <script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
 <script type="text/javascript">
 $.getJSON('./jsonp.php?callback=?', 'firstname=Jeff', function(res) {
 alert('Your name is ' + res.fullname);
 alert('Bullshit data is: ' + res.message);
 });
 </script>
 </head>
 <body>
 </body>
 </html>
 
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