Integrating C Libraries with PHP FFI and Callbacks

PHP is highly versatile, but sometimes you need to tap into high-performance C libraries or native system APIs directly. The Foreign Function Interface (FFI) allows you to bridge this gap without writing complex C extensions. This text-only course guides you through the foundational concepts of PHP FFI, showing you how to bind C functions, handle data types, and safely implement PHP callbacks within native C code. You will gain the confidence to integrate external libraries while maintaining application stability. What you'll learn: Understand the core architecture of PHP FFI and native C bindings; Declare and call C functions directly from your PHP scripts; Implement PHP callbacks to let native C code execute PHP logic; Manage memory safely to prevent memory leaks and segmentation faults; Configure FFI preloading for optimal performance in production environments; Handle cross-platform compatibility and basic C type conversions. You will start with key terminology and basic setup before moving step-by-step through practical code scenarios, examining memory management, and exploring real-world integration patterns. This course is designed for PHP developers who want to expand their system-level programming skills; no prior experience with FFI or C is required, though a basic understanding of PHP is recommended. Start reading today to unlock the full power of native library integration in your PHP applications.