👀 Views: 78 💬 Answers: 1 📅 Created: 2025-06-06

php session php8.1 PHP

I'm having a hard time understanding I can't seem to get I'm working on a project and hit a roadblock....... I'm stuck on something that should probably be simple. I'm having trouble with a custom session handler in PHP 8.1 that manages user sessions but fails to properly regenerate session IDs. After successfully logging in, I call `session_regenerate_id(true)` to prevent fixation attacks, but it seems that the session data isn't being carried over after regeneration. Here's the code for my custom session handler: ```php class MySessionHandler implements SessionHandlerInterface { private $sessionData = []; public function open($savePath, $sessionName) { return true; } public function close() { return true; } public function read($sessionId) { return isset($this->sessionData[$sessionId]) ? $this->sessionData[$sessionId] : ''; } public function write($sessionId, $data) { $this->sessionData[$sessionId] = $data; return true; } public function destroy($sessionId) { unset($this->sessionData[$sessionId]); return true; } public function gc($maxlifetime) { return true; } } $handler = new MySessionHandler(); session_set_save_handler($handler, true); session_start(); // Simulating a user login $_SESSION['user_id'] = 123; // Regenerating session ID after login session_regenerate_id(true); // Checking session data after regeneration var_dump($_SESSION); ``` After the call to `session_regenerate_id(true)`, the `var_dump($_SESSION);` shows that the `$_SESSION['user_id']` is no longer set—it appears empty. I've confirmed that the `write` method of my custom session handler is called because I see data being saved. However, when I regenerate the session, it seems like the session is completely new, with no data carried over. I've also tried changing the parameter in `session_regenerate_id()` to `false`, but that did not resolve the scenario. Is there something I'm missing regarding how session data is handled during ID regeneration? Any insights would be appreciated! My development environment is Ubuntu. For context: I'm using Php on Ubuntu 22.04. Has anyone dealt with something similar? For reference, this is a production web app. Thanks for any help you can provide! This issue appeared after updating to Php 3.10. I appreciate any insights!