What are common reasons for cookies or sessions not functioning after a server migration in PHP?

Common reasons for cookies or sessions not functioning after a server migration in PHP include changes in server configurations, different PHP versions, or incorrect paths set for cookies or sessions. To solve this issue, ensure that the session save path is correctly configured in the php.ini file and that the session_start() function is called before any output is sent to the browser. 

// Set the session save path to a writable directory
session_save_path('/path/to/writable/directory');

// Start the session
session_start();

Keywords

server migration cookies sessions PHP functions error types

Related Questions