9. Performance Optimization
Caching:
Use a caching layer (e.g., Redis, Memcached) to cache frequently accessed data.
Optimizing Queries:
// Good
SELECT name FROM users WHERE id = 1;
// Bad
SELECT * FROM users WHERE id = 1; Profiling and Benchmarking:
Use profiling tools (e.g., Xdebug, Blackfire) to identify performance bottlenecks.