达维营-前端网实现jsonp的方式如下：
//客户端，jquery
<!DOCTYPE html>
<head>
<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
<script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>
//第1种
<script type="text/javascript">
$.getJSON("http://laravel.local/test/jsonp?callback=?", {name: encodeURIComponent('tester')},
function (result) {
console.log(result);
});
//第2种
$.ajax({
url: "http://laravel.local/test/jsonp",
dataType: 'jsonp',
data: {name: encodeURIComponent('tester')},
jsonp: 'callback',
success: function (result) {
console.log(result);
},
timeout: 3000
});
//第3种
$.get('http://laravel.local/test/jsonp?callback=?', {name: encodeURIComponent('tester')}, function (result) {
console.log(result);
}, 'jsonp');
</script>
</head>
服务器端
//服务端，php laravel框架
<?php
namespace app\Http\Controllers;
use Illuminate\Http\Request;
class TestController extends Controller
{
public function getIndex(Request $request)
{
$name=$request->input('name');
$arr=array('a'=>$name,'b'=>2,'c'=>3,'d'=>4,'e'=>5);
$callback=$request->input('callback');
return $callback.'('.json_encode($arr, JSON_UNESCAPED_UNICODE).')';
// return 'try{'.$callback.'('.json_encode($arr, JSON_UNESCAPED_UNICODE).')}catch(e){}';
}
}