问基于使用JSON或AJAX的定期服务器调用的实时重定向

EN

//data is returned by server as json object
//data.route = true or false as validated from database
//data.location is the location new url

$.post("server.php", { "id": "studentid" },
   function(data){  //data is returned by server as json object
     if(data.route)
     {
        window.location = data.location
     }

   }, 
   "json");

if(student is to be routed){ //check from the database
    $data['route'] = true;
    $data['location'] = 'location';
}
else{
    $data['route'] = false;
}
echo json_encode($data);

function fun1()
{
//put your ajax code herer
} 

$(function(){ setInterval( 'fun1()', 1000) }); 
//use setInterval function
// to call function periodically