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JavaScript

Hugo Paz
Hugo Paz
15,622 Points
Posted by Hugo Paz
Hugo Paz
15,622 Points

Extracting array values in PHP session variable with Ajax

I want to display a cart which is saved in a session variable. I want to do it on hover so I'm using jQuery.

This is a test example:

On my test page i have:

session_start();
$_SESSION["test"] = array("one", "two", "three");

On my getsession.php i have:

session_start();
if (isset($_GET['requested'])) {
    // return requested value
    print json_encode($_SESSION[$_GET['requested']]);
} else {
    // nothing requested, so return all values
    print json_encode($_SESSION);
}

And on my app.js i have:

//get session data
var session;

$("#getSession").click(function (){

$.ajaxSetup({cache: false});
$.get('getsession.php', {requested: 'test'}, function (data) {
    session = data;
    $("#sessionContent").append(session);
});
});

When i click the button to test the result i get ["one","two","three"]

If i try $("#sessionContent").append(session[0]);

I get [

How can i access each individual value on the array?

1 Answer

Chris Shaw
Chris Shaw
26,662 Points
Chris Shaw
Chris Shaw
26,662 Points

Hi Hugo,

By default GET requests use the content-type text/plain, what you want is application/json which you can achieve by setting an 4th argument in the $.get method call as I've done below, now you will have access to an array and not just a string.

$.get('getsession.php', {requested: 'test'}, function (data) {
    session = data;
    $("#sessionContent").append(session[0]);
}, 'json');
Hugo Paz
Hugo Paz
15,622 Points
Hugo Paz
Hugo Paz
15,622 Points

Worked perfectly. Thank you for your help.