What are common reasons for session issues when redirecting users to a different domain in PHP?

Session issues when redirecting users to a different domain in PHP commonly occur due to the way sessions are handled across different domains. To solve this issue, you can use session cookies with a shared domain or implement session passing through URLs. 

// Start the session
session_start();

// Set session cookie parameters for a shared domain
session_set_cookie_params(0, '/', '.example.com');

// Redirect the user to a different domain with session ID passed through URL
header("Location: http://differentdomain.com?session_id=" . session_id());
exit();

Keywords

session domain redirect PHP issues

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