In PHP, how do I deduplicate objects with PHP 8+ features?

In PHP 8 and later, you can use features such as array_filter and array_unique to deduplicate objects easily. Here’s how you can do it using modern PHP capabilities.

keywords: PHP 8, deduplicate objects, array_filter, array_unique, modern PHP features
description: This example demonstrates how to deduplicate objects in PHP 8 using built-in functions.
<?php class User { public string $name; public int $age; public function __construct(string $name, int $age) { $this->name = $name; $this->age = $age; } } $users = [ new User('Alice', 30), new User('Bob', 25), new User('Alice', 30), new User('Charlie', 30), ]; // Deduplicate users based on name and age $uniqueUsers = array_map('unserialize', array_unique(array_map('serialize', $users))); print_r($uniqueUsers); ?>

keywords: PHP 8 deduplicate objects array_filter array_unique modern PHP features

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