What You'll Learn: Grasp the fundamentals of why PHP performance matters for user experience, resource costs, and scalability, and debunk common misconceptions. Define and measure key performance indicators (KPIs) for web applications, including server response time, requests per second, and resource usage. Identify various bottlenecks within the PHP request lifecycle (CPU, I/O, Memory, Network) and utilize basic measurement tools. Set up an optimized development environment by selecting the right stack ...
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What You'll Learn: Grasp the fundamentals of why PHP performance matters for user experience, resource costs, and scalability, and debunk common misconceptions. Define and measure key performance indicators (KPIs) for web applications, including server response time, requests per second, and resource usage. Identify various bottlenecks within the PHP request lifecycle (CPU, I/O, Memory, Network) and utilize basic measurement tools. Set up an optimized development environment by selecting the right stack components (Nginx vs. Apache, PHP-FPM) and essential PHP extensions. Master code profiling to pinpoint performance hot spots using tools like Xdebug for development and Blackfire.io for production. Optimize the PHP runtime by effectively configuring and leveraging OPcache (including preloading) and APCu for efficient caching. Understand and utilize PHP's Just-In-Time (JIT) compiler in PHP 8+ to accelerate CPU-bound applications. Implement comprehensive caching strategies , from client-side and CDN caching to distributed object caching with Memcached and Redis . Optimize database performance by identifying bottlenecks through slow query logs and EXPLAIN plans. Write efficient SQL queries , master indexing techniques, and manage database connections effectively. Explore advanced database scaling strategies such as read replicas and sharding. Write performant PHP code by applying efficient data structures and algorithms, avoiding common pitfalls, and optimizing string and array operations. Implement asynchronous PHP and non-blocking I/O using frameworks like Swoole or ReactPHP and PHP 8.1+ Fibers for concurrent task handling. Apply design patterns tailored for high-performance applications, including Flyweight, Lazy Loading, and Circuit Breaker. Scale PHP applications horizontally by understanding and implementing load balancing strategies and tools (Nginx, HAProxy). Manage sessions effectively in distributed environments using centralized storage or stateless alternatives. Integrate performance testing (load, stress, soak) into your CI/CD pipelines to prevent regressions. Set up long-term performance monitoring and alerting in production environments for continuous optimization and capacity planning. Analyze real-world case studies to apply learned principles to common performance challenges in e-commerce, media, and API backends.
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