Basic usage
Introduction
Affecting PHP's Behaviour
PHP Manual

# OPcache

- Introduction
- Installing/Configuring
  - Requirements
  - Installation
  - Runtime Configuration
  - Resource Types
- OPcache Functions
  - opcache_compile_file — Compiles and caches a PHP script without executing it
  - opcache_invalidate — Invalidates a cached script
  - opcache_reset — Resets the contents of the opcode cache

Basic usage
Introduction
Affecting PHP's Behaviour
PHP Manual