页面代码：
<!DOCTYPE html><html><head> ???<meta charset="utf-8"> ???<title>JSONP 实例</title> ???<script src="http://cdn.static.runoob.com/libs/jquery/1.8.3/jquery.js"></script> ???</head><body><div id="divCustomers"></div><script>$.getJSON("http://www.runoob.com/try/ajax/jsonp.php?jsoncallback=?", function(data) { ???????var html = ‘<ul>‘; ???for(var i = 0; i < data.length; i++) ???{ ???????html += ‘<li>‘ + data[i] + ‘</li>‘; ???} ???html += ‘</ul>‘; ???????$(‘#divCustomers‘).html(html); });</script></body></html>客户端实现 callbackFunction 函数：
<script type="text/javascript">function callbackFunction(result, methodName){ ???var html = ‘<ul>‘; ???for(var i = 0; i < result.length; i++) ???{ ???????html += ‘<li>‘ + result[i] + ‘</li>‘; ???} ???html += ‘</ul>‘; ???document.getElementById(‘divCustomers‘).innerHTML = html;}</script>服务器端代码：
<?phpheader(‘Content-type: application/json‘);//获取回调函数名$jsoncallback = htmlspecialchars($_REQUEST [‘jsoncallback‘]);//json数据$json_data = ‘["customername1","customername2"]‘;//输出jsonp格式的数据echo $jsoncallback . "(" . $json_data . ")";?>JSONP-跨域读取数据
原文地址：http://www.cnblogs.com/sagacity-shen/p/7597456.html