在页面之间立即传递php变量

Question

I need to send php from other php page back to index at the same time. I use $_SESSION , but it shows result only after I refresh page. In index I'm getting values from inputs sending them through button onClick action myAjax().

function myAjax() {
var range = document.getElementById('range').value;
var port = document.getElementById('port').value;
$.ajax({
   type: "POST",
   url: 'nova2.php',
   data:{action:'call_this',range:range,port:port},
   success:function(html) {
    // alert(html);
   }
});
}

to nova2.php, where I do query on database and getting array which I want to send back to index.php

while ($row = $query2->fetch_assoc()) {
    $port_list[] = $row['port_name'];

}

$_SESSION["var_name"] = $port_list;
mysqli_close($con);

I put almost same ajax script under this php function (of course without session), but it wasn't working. I didn't recieve any value in index.php

type: "POST",
url: 'index.php',
data:{action:'action',port_list:port_list},

Is there any other way? Thank you

Answer 1

If you need SESSION value on same page where from you have requested AJAX to nova2.php.

in nova2.php

while ($row = $query2->fetch_assoc()) {
    $port_list[] = $row['port_name'];

}

$_SESSION["var_name"] = $port_list;
mysqli_close($con);
echo json_encode(array('port_list'=>$port_list));

In your AJAX function

function myAjax() {
var range = document.getElementById('range').value;
var port = document.getElementById('port').value;
$.ajax({
   type: "POST",
   url: 'nova2.php',
   dataType: 'json',
   async: false,
   data:{action:'call_this',range:range,port:port},
   success:function(data) {
     port=data.port_list;
   }
});
}

I hope it should be work. Thanks