What are the potential pitfalls of storing session IDs in global variables in PHP?

Storing session IDs in global variables in PHP can lead to security vulnerabilities such as session hijacking or session fixation attacks. It is recommended to use PHP's built-in session handling functions to manage session IDs securely. 

// Start session
session_start();

// Access session ID using session_id() function
$session_id = session_id();

// Use $session_id as needed throughout the application

Keywords

session IDs global variables security vulnerability session hijacking data leakage

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