PHP 8 introduces readonly properties that can only be set during object initialization, providing immutable, constant-like behavior useful for defining constants, protecting sensitive data, and enhancing code safety, with examples showing initialization, immutability, consistency, and even getter/setter usage.
The article outlines PHP 8.1’s major enhancements—including enums, readonly properties, advanced callable syntax, fibers, intersection types, never return type, final class constants, octal literals, and performance improvements—providing code comparisons that illustrate the new syntax and behavior.
The PHP 8.1 release introduces enumerations, first‑class read‑only properties, the never return type, array_is_list, Fibers and other enhancements while also outlining deprecations and the newly formed PHP Foundation that supports the language’s future development.
This article explains PHP 8.1's new readonly property feature, shows how it differs from previous DTO patterns, demonstrates proper syntax, outlines restrictions such as type requirements and inheritance rules, and provides cloning work‑arounds with code examples for backend developers.
The article reviews the most notable Visual Basic 14 enhancements—including the null‑conditional operator, CallerNameAttribute, string interpolation, multi‑line strings, readonly auto‑properties, improved namespace resolution, preprocessor directives, and XML documentation support—illustrating each feature with clear VB code examples.
