What are some best practices for handling session directories and errors in PHP when creating an online shop?

When creating an online shop in PHP, it is important to handle session directories and errors properly to ensure smooth functionality. One best practice is to set a specific directory for session files to prevent conflicts and ensure security. Additionally, implementing error handling mechanisms such as try-catch blocks can help in identifying and resolving issues that may arise during the execution of the code.

// Set a specific directory for session files
session_save_path('/path/to/session/directory');
session_start();

// Implement error handling using try-catch blocks
try {
    // Code that may throw errors
} catch (Exception $e) {
    // Handle the error
    echo 'An error occurred: ' . $e->getMessage();
}