jsonp的使用
<?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 . ")";?>
2. 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>
页面展示
<div id="divCustomers"></div>
客户端页面完整代码
<!DOCTYPE html><html><head><meta charset="utf-8"><title>JSONP 实例</title></head><body><div id="divCustomers"></div><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><script type="text/javascript" src="https://www.runoob.com/try/ajax/jsonp.php?jsoncallback=callbackFunction"></script></body></html>
jQuery 使用 JSONP
以上代码可以使用 jQuery 代码实例：
<!DOCTYPE html><html><head> <meta charset="utf-8"> <title>JSONP 实例</title> <script src="https://cdn.static.runoob.com/libs/jquery/1.8.3/jquery.js"></script> </head><body><div id="divCustomers"></div><script>
$.getJSON("https://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>
