Skip to main content

Architecture

Overview​

PHP 8.1.31 is a stable release of PHP 8.1 series, featuring significant performance improvements, new language features, and enhanced security measures.

Key Components​

Zend Engine 4.1​

  • Improved performance and memory usage.

  • Enhanced JIT (Just-In-Time) compilation.

  • Better opcache optimization.

  • Advanced garbage collection.

Core Features​

  • Enumerations (Enums): Native enum support for better type safety.

  • Fibers: Lightweight cooperative multitasking.

  • Readonly Properties: Immutable object properties.

  • First-class Callable Syntax: Improved function reference handling.

  • Intersection Types: More precise type declarations.

Architecture Layers​

Memory Management​

  • Reference counting with cycle collection.

  • Copy-on-write optimization.

  • Improved memory allocation algorithms.

  • Enhanced garbage collection in PHP 8.1.