What are the best practices for managing session data in PHP applications?

Managing session data in PHP applications involves securely storing and accessing user-specific information across multiple requests. To ensure data integrity and prevent security vulnerabilities, it is recommended to properly configure session settings, validate and sanitize input data, and use encryption for sensitive information. 

// Start the session
session_start();

// Set session data
$_SESSION['user_id'] = 123;
$_SESSION['username'] = 'john_doe';

// Access session data
$user_id = $_SESSION['user_id'];
$username = $_SESSION['username'];

// Destroy session data
session_unset();
session_destroy();

Keywords

session data PHP applications security encryption expiration

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