What is the difference between session name and session ID in PHP?

Session name is the name given to a session cookie that is used to identify a particular session on the server. Session ID, on the other hand, is a unique identifier generated by the server to associate a user's session data with their session. It is important to set a custom session name to prevent conflicts with other applications on the server.

// Set a custom session name
session_name("my_custom_session");

// Start the session
session_start();