What are the best practices for copying a base version of an application for individual users in PHP?

When copying a base version of an application for individual users in PHP, it is important to create a separate copy for each user to ensure data isolation and customization. One way to achieve this is by using a template or base version of the application as a starting point, and then duplicating it for each user with their specific settings and data.

// Example code to copy a base version of an application for individual users

// Base version of the application
$baseApp = [
    'setting1' => 'default',
    'setting2' => 'default',
    'data' => []
];

// User-specific settings and data
$user1Settings = [
    'setting1' => 'custom1',
    'data' => ['user1_data1', 'user1_data2']
];

$user2Settings = [
    'setting2' => 'custom2',
    'data' => ['user2_data1', 'user2_data2']
];

// Copying base version for user1
$user1App = $baseApp;
$user1App = array_merge($user1App, $user1Settings);

// Copying base version for user2
$user2App = $baseApp;
$user2App = array_merge($user2App, $user2Settings);

// Now $user1App and $user2App are individual copies of the base application with user-specific settings and data