How to use Union Types in PHP

Published On25 Jul 2020

PHP 8 Union Types

One of the most exciting features in PHP 8.0 is Union Types. Union Types allow you to declare a type constraint as a union of two or more types.

Recent Articles on PHP.Watch

All ArticlesFeed 
How to fix PHP Curl HTTPS Certificate Authority issues on Windows

How to fix PHP Curl HTTPS Certificate Authority issues on Windows

On Windows, HTTPS requests made with the Curl extension can fail because Curl has no root certificate list to validate the server certificates. This article discusses the secure and effective solutions, and highlights bad advice that can leave PHP applications insecure.
AEGIS Encryption with PHP Sodium Extension

AEGIS Encryption with PHP Sodium Extension

The Sodium extension in PHP 8.4 now supports AEGIS-128L and AEGIS256 Authenticated Encryption ciphers. They are significantly faster than AES-GCM and CHACHA20-POLY1305. This article benchmarks them and explains how to securely encrypt and decrypt data using AEGIS-128L and AEGIS256 on PHP.
How to Install/Upgrade PHP 8.3 on MacOS with Homebrew

How to Install/Upgrade PHP 8.3 on MacOS with Homebrew

Install PHP 8.3 and PHP extensions on MacOS with Homebrew.
Subscribe to PHP.Watch newsletter for monthly updates

You will receive an email on last Wednesday of every month and on major PHP releases with new articles related to PHP, upcoming changes, new features and what's changing in the language. No marketing emails, no selling of your contacts, no click-tracking, and one-click instant unsubscribe from any email you receive.