root/LayoutTests/jquery/resources/test/data/jsonp.php

<?php
error_reporting(0);
$callback = $_REQUEST['callback'];
if ( ! $callback ) {
        $callback = explode("?",end(explode("/",$_SERVER['REQUEST_URI'])));
        $callback = $callback[0];
}
$json = $_REQUEST['json'];
if($json) {
        echo $callback . '([ {"name": "John", "age": 21}, {"name": "Peter", "age": 25 } ])';
} else {
        echo $callback . '({ "data": {"lang": "en", "length": 25} })';
}
?>