jQuery AJAX Post不起作用

Question

I can't figure out why the following code doesn't work. For the time being, the php function "alias_valid" just returns a string for testing purposes, so I haven't included the php function here. The alert is empty.

$.post(SITE_ROOT + "includes/AbstractEvent.php",{
    action:"alias_valid", 
    alias : alias},
    function(v){
        alert(v);
    });

Answer 1

If a request with jQuery.post() returns an error code, it will fail silently

Try .error() to check if there is any error happening

Syntax:

// Assign handlers immediately after making the request,
// and remember the jqxhr object for this request
var jqxhr = $.post("example.php", function() {
  alert("success");
})
.success(function() { alert("second success"); })
.error(function() { alert("error"); })
.complete(function() { alert("complete"); });

More info on $.post