php - ajax does not response -

i try take response not. can't describe why not work or wrong.

var virmanyap = function(){    $("#loading").show();    $("#tblvirman").hide();    alert('virman');    var data = $("#virman_filtre").serialize();    $.post("php/virman_yap.php", data).success(function(r){         alert(r);    }); } 

my php code:

foreach ($_post['virman'] $evrakno => $detay) {     print_r($_detay); } echo "asd"; 

try $.ajax instead of $.post:

var virmanyap = function () {     $("#loading").show();     $("#tblvirman").hide();     alert('virman');     var data = $("#virman_filtre").serialize();     $.ajax({         url: 'php/virman_yap.php',         type: 'post',         data: data,         success: function (r) {             alert(r);         }     }); }