In PHP, how do I map objects in a memory-efficient way?

In PHP, to map objects in a memory-efficient way, you can use PHP's built-in functions and data structures effectively. Below is an example that demonstrates how to achieve this through the use of arrays and leveraging references to reduce memory usage.

Keywords: PHP, memory-efficient, objects, array, mapping
Description: This example illustrates how to map objects in PHP efficiently using arrays, which helps in managing memory usage effectively.
<?php // Example of mapping objects in a memory-efficient way class User { public $name; public $email; public function __construct($name, $email) { $this->name = $name; $this->email = $email; } } // Creating an array of user objects $users = []; $users[] = new User('John Doe', 'john@example.com'); $users[] = new User('Jane Smith', 'jane@example.com'); // Mapping user names to email addresses $userMap = []; foreach ($users as $user) { // Using references to save memory $userMap[$user->name] =& $user->email; } // Output the user map print_r($userMap); ?>

Keywords: PHP memory-efficient objects array mapping