What are the benefits of using SESSION and formulas for updating data in PHP scripts, especially in the context of browser games?

When working with browser games in PHP scripts, using SESSION variables and formulas for updating data can provide a more seamless and efficient way to manage game state and player progress. SESSION variables can store important data across multiple pages or requests, while formulas can dynamically calculate changes to game variables based on player actions. This approach helps maintain game continuity and ensures that player data is accurately updated and saved.

// Start the session
session_start();

// Update player health using a formula
$playerHealth = $_SESSION['player_health'];
$damageTaken = 10; // Example damage taken by player
$playerHealth -= $damageTaken;
$_SESSION['player_health'] = $playerHealth;

// Display updated player health
echo "Player Health: " . $_SESSION['player_health'];