What are some best practices for handling session-related errors in PHP?

Session-related errors in PHP can occur due to various reasons such as expired sessions, invalid session data, or server configuration issues. To handle these errors effectively, it is essential to implement proper error handling mechanisms, such as checking for session errors before accessing session data and providing appropriate error messages to the user. 

// Check for session errors before accessing session data
if(session_status() === PHP_SESSION_NONE) {
    session_start();
}

// Check if session data is valid
if(!isset($_SESSION['user_id'])) {
    // Redirect to login page or display an error message
    header("Location: login.php");
    exit();
}

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

Keywords

session error handling PHP exceptions debugging

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