如何使用.load（）在变量中存储值；

Question

I want to compare two variables, oldRefresh and newRefresh . the oldRefresh 's value in an input so easily storing it in oldRefresh by typing var oldRefresh= $('#oldrefresh').val();

but the newRefresh , is hard to get it, I need to get it from another file with .load();

this is the code:

var oldRefresh= $('#oldrefresh').val();

setInterval(function ()
{
    $('#noti_number').load('include/js_notification_count.php?n=".$_SESSION['username']."');
    });
}, 5000); 

I tried this:

var newRefresh = setInterval(function ()
{
    $('#noti_number').load('include/js_notification_count.php?n=".$_SESSION['username']."');
    });
}, 5000); 
alert(newRefresh);

the result of this is 2 when the result of the load it should be 0 .

so I tried this

setInterval(function ()
{
    var newRefresh = $('#noti_number').load('include/js_notification_count.php?n=".$_SESSION['username']."');
    });
    alert(newRefresh);
}, 5000); 

the result of this is [object Object] . I don't get it. how do I get the load value into a variable?

Answer 1

The jQuery load is replacing the object with the information returned from your js_notification_count.php file. You could add .text() or change load function like:

setInterval(function () {
   $('#noti_number').load('include/js_notification_count.php?n=<?=$_SESSION['username']?>', function(response, status, xhr) {
         newRefresh = response;
         alert(newRefresh);
      }
   });
}, 5000);

I would use ajax instead though (if you don't need noti_number to have the returned response) like:

setInterval(function () {
   $.ajax({
      type: "GET", //Change to whatever method type you are using on your page
      url: "include/js_notification_count.php",
      data: { n: "<?=$_SESSION['username']?>" }
   }).done(function(result) {
      newRefresh = result;
      alert(newRefresh);
   });
}, 5000); 

Answer 2

if you do this you should be able to compare the values:

$('#noti_number').load(
   'include/js_notification_count.php?n=".$_SESSION['username']."',
   function(aData) {
      //Do your comparison here.
   }
)

The data passed back should be the response from the server.