How to setup session for a site alias. PHP Apache2

Question

I'm running php on an Apache2 server with virtual hosts. I have 2 domains, let's say domain1.com and domain2.com (NOT subdomains)

domain2.com is a ServerAlias of domain1.com

The session on domain1.com is working just fine. However, I can't get session variables to save on domain2.com.

I don't believe my session is saving, because it's not carrying over between pages. I set the variables on my index.php page. I can dump the session and see that it was initially set. Then my index.php redirects to home.php where I have this at the top of home.php

<?php
session_start();
var_dump($_SESSION); 
?>

I'm getting an empty array on home.php

My phpinfo() settings are exactly the same for my session information on the 2 domains.

I'm stuck, not sure if this is a php issue, or an apache setting. Any help is greatly appreciated!

Answer 1

Sessions in php are normally maintained in php by cookies. What you are probably seeing is the value of session.cookie_domain being set to your working domain set in the ini. Use ini_set or session_set_cookie_params before your session_start call to rectify.

Answer 2

Another option that worked for me: is to force the name of the session:

session_name("myWebsite");
session_start();