甜蜜警报确认然后将数据保存到数据库

Question

I want to save data to the database but before that I must check name condition. If name is available it will show confirm's pop up (I use sweet alert). I already tried this code but it can't execute function for save data. Anyone can help me?

code :

 $name = $_POST['name'];
 $cekname = mysql_query("select * from data_alumni where name='$name'");
 $jumlahnama = mysql_num_rows($cekname);

 if ($jumlahname > 0) {
     echo '<script>swal({ title: "Are you sure?", text: "name is available, continue save?", type: "warning", showCancelButton: true, confirmButtonColor:"#DD6B55",  confirmButtonText: "Yes, delete it!",   closeOnConfirm: false }, function(){' . savedata($nama) . '});</script>';
 } else { 
     #other function 
 }

Answer 1

1. Check your query- you have to concatenate variables using the dot operator (ie . ):
   $ceknama = mysql_query("select * from data_alumni where nama='".$nama."'");
2. Use Javascipt confirm() method after the AJAX call for interactive communication with a PHP script and the database.

Answer 2

Php (client side):

 document.querySelector('#form-input-biodata').addEventListener('submit', function (e) {
    var form = this;
    e.preventDefault();
    var nama = $("#nama-alumni").val();
    var ceknama = 'ceknama=' + nama;
    $.ajax({
        type: "POST",
        url: "url file php",
        data: ceknama,
        cache: false,
        success: function (jumlahnama) {
            if (jumlahnama == "0") {
                form.submit();

            } else {
                swal({
                    title: "Konfirmasi?",
                    text: "Nama telah terdaftar, Ingin Melanjutkan?!",
                    type: "warning",
                    showCancelButton: true,
                    confirmButtonColor: "#DD6B55",
                    confirmButtonText: "Yes",
                    closeOnConfirm: false
                },
                        function () {
                            form.submit();
                        });
            }
        }
    });
});

server side :

if (isset($_POST['ceknama'])) {
include 'connection.php';
$nama = isset($_POST['ceknama']) ? addslashes($_POST['ceknama']) : "";
$hubung = mysql_query("its my query");
$total = mysql_num_rows($hubung);
echo $total;}