Two-Factor Authentication in PHP: Adding a Second Layer of Login Security
A practical guide to adding TOTP-based two-factor authentication to PHP applications, with setup, verification, and recovery codes.
CSRF Protection in PHP: A Deep Dive
A deep dive into CSRF protection in PHP: how the attack works, the synchronizer token pattern, SameSite cookies, and why API endpoints need a different approach.
Security Headers for PHP Applications: Hardening Your Responses
A practical guide to security headers for PHP applications: Content-Security-Policy, X-Frame-Options, HSTS, X-Content-Type-Options, and applying them via middleware.
PHP Performance Optimization: Making Your Application Genuinely Fast
A practical guide to PHP performance optimization: profiling before optimizing, fixing N+1 queries, enabling OPcache, caching, and database indexing.
Docker Deployment for PHP Applications: A Practical Guide
A practical guide to Docker deployment for PHP applications: writing a minimal Dockerfile, multi-stage builds, environment configuration, and health checks.
Environment Configuration in PHP: Managing .env Files and Secrets Safely
A practical guide to PHP environment configuration: .env files, centralized config access, avoiding direct env() calls, and environment-aware defaults.