PHP - Real Time Application

Question

A doubt

I need to make an application that from time to time validates whether a session is valid through a bank query. This query must be done automatically, without the need for a user action, type a JS Location.Reload().

I thought about using a php socket to do this validation, but I don’t know if it’s the right one. Or change the whole idea and abandon php and use the nodejs that seems to be more useful for this feature.

Could someone explain to me the best way to develop this application? I only need a guide of what to use, and not of code or scripts ready, it is more the conceptual question itself and show the correct path to follow

Answer 1

Follow the outline below in js and php.

I don’t see the need to use socket or nodejs, when a simple request and a setInterval can solve your problem.

Taken 5 seconds is called the Ssao() function, which makes an ajax request where it returns an array containing the result of an sql query;

JS:

$(document).ready(function () {
    setInterval(validaSessao , 5000);
});
function validaSessao(){
    $.ajax({
        method:'post',
        url: 'validaSessao.php',
        async: true,
         dataType:'json',
        success: function (retorno) {

            console.log(retorno);
        }


    });
}

PHP:

$stmt = $conn->prepare("");
$stmt->bindParam('', $nome, PDO::PARAM_STR);
$res = $stmt->execute();
echo json_encode($res);