What is the purpose of using the unload event in PHP?

The unload event in PHP is used to perform any necessary cleanup tasks before a script finishes execution, such as closing database connections or freeing up resources. This event is triggered when a script is about to finish execution, allowing for any final actions to be taken.

// Perform cleanup tasks before script finishes execution
register_shutdown_function(function() {
    // Close database connections
    mysqli_close($connection);
    
    // Free up any resources
    // Perform any other necessary cleanup tasks
});