Migrations, audits, performance, architecture — written, reviewed, published.
2026 overview of PHP execution engines: Zend + PHP-FPM, FrankenPHP, RoadRunner, Swoole/OpenSwoole, ReactPHP, AmPHP. Benchmarks, mental models, per-use-case recommendations.
Full production OPcache configuration, Symfony preloading, PHP 8 JIT, monitoring via opcache_get_status, deploy-time purge. Measured gains and pitfalls seen in audits.
Running Elasticsearch in production with Symfony: PHP clients, explicit mapping, Messenger-based indexing, aggregations, relevance tuning, zero-downtime reindex. 2026 landscape against OpenSearch, Meilisearch and Typesense.
Five stacked cache layers for a PHP application in production: OPcache, query cache, Redis, Varnish, CDN. Invalidation patterns, cache stampede, metrics and stack per company size.
Seven proven levers to drive a Symfony API's p95 latency below 200 ms: N+1 detection, serializer choice, HTTP cache, Redis, pagination, compression, HTTP/2 and HTTP/3. Real Symfony code.
A 2026 overview of the tools we use to measure PHP application performance: Blackfire, Tideways, Datadog, New Relic, OpenTelemetry, k6, Gatling. Comparison tables, actual costs and methodology.
A production-ready Symfony CI/CD pipeline in 7 stages: install, lint, static analysis, tests, security, Docker build, ECS deploy. Full GitHub Actions workflow, PHP 8.2/8.3/8.4 matrix, OIDC to AWS, blue-green and canary strategies, DORA metrics.
Three architecture tiers for PHP on AWS: MVP at 100 EUR/month, Growth at 500 EUR/month, Scale at several thousand. Concrete services (ECS Fargate, RDS, ElastiCache, CloudFront), production-ready PHP-FPM Dockerfile, Terraform module, cost traps and observability.
A full method to take over a legacy PHP codebase without breaking it: functional, technical, risk, debt and human mapping. Concrete tools (PHPStan, Deptrac, Rector), a decision matrix and a 5-step exit plan.
Architecture, Symfony code, PostgreSQL schema and real costs to run a RAG in production. pgvector 0.8, Claude 4.5 Sonnet, OpenAI text-embedding-3-large embeddings, Cohere reranking.
Overview of OWASP Top 10 2025 and concrete implementation under Symfony 7: voters, argon2id, level 3 CSP, rate limiter, DBAL, Monolog security, pre-production checklist.
A five-phase methodology to migrate a PHP 5.6 monolith to 8.3 with no big bang, using Rector, PHPStan, Deptrac and Behat. Field report from a 14-month project, zero incidents.
First post on the YDH blog — what we'll publish and for whom.