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

In PHP 8 and later, you can hash objects using the `serialize` function combined with `hash` functions. This is helpful for generating unique identifiers or storing object states securely. Below is an example of how to implement this feature.

<?php // Defining a simple class class User { public string $name; public int $age; public function __construct(string $name, int $age) { $this->name = $name; $this->age = $age; } } // Creating an object $user = new User("John Doe", 30); // Serialize the object $serializedObject = serialize($user); // Hash the serialized object $hash = hash('sha256', $serializedObject); echo "Hash of the User object: " . $hash; ?>

php 8 object hashing serialize objects php hash functions php

Related Questions

How do I avoid rehashing overhead with std::set in multithreaded code?

How do I find elements with custom comparators with std::set for embedded targets?

How do I erase elements while iterating with std::set for embedded targets?

How do I provide stable iteration order with std::unordered_map for large datasets?

How do I reserve capacity ahead of time with std::unordered_map for large datasets?

How do I erase elements while iterating with std::unordered_map in multithreaded code?

How do I provide stable iteration order with std::map for embedded targets?

How do I provide stable iteration order with std::map in multithreaded code?

How do I avoid rehashing overhead with std::map in performance-sensitive code?

How do I merge two containers efficiently with std::map for embedded targets?