Session without the www and with the www php [closed]

It has to do with the domain. Some domains are natively suaite.com.br or www.seusite.com.br.

Try setting up the CNAME for your hosting. Some DNSs should point to different places. Consequently generating different sessions.

Specify a directory where both can save the session. To do this, use session_save_path () . Read the documentation, the syntax looks something like this:

    <?php 
    ini_set('session.save_path',realpath(dirname($_SERVER['DOCUMENT_ROOT']) . '/../session'));
    session_start();
?>