Halit YEŞİL

Field notes on software, servers and AI.

What actually works, and what does not, when you build real projects with native PHP, MariaDB, Linux servers and AI coding agents. If I did not measure it, I do not say I did. Three posts a week: a series chapter on Tuesday, a radar pick on Thursday, a standalone technical piece on Saturday.

The square Kufic mark spells “Halit Yeşil” in Latin letters.

No. 3111 min read

Code Wars: ORM or Raw SQL? – The Interpreter at the Table

I measured Eloquent against raw SQL on the same MariaDB in four scenarios. The fastest and the slowest rows were both hand-written SQL; the query plan, not the ORM, made the difference.

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Latest writing

31 posts
  1. No. 30 Cutaway of a two-storey house with all lights off; a tap runs inside, and beside the door an amber doorbell and a half-raised breaker lever stand out, a metaphor for a headless browser. Moli: A Browser With the Lights Off – A Rust Headless Browser for AI Agents Artificial Intelligence / AI
  2. No. 29 A closed steel fire door at the end of a data center corridor holds back an orange glow and smoke, a stand-in for PHP2Shell mitigation on unpatched servers. PHP2Shell: A Fire Door for the Server That Gets No Patch PHP
  3. No. 28 An elephant-shaped cake being eaten slice by slice, the cut slices lined up on plates and one waiting with a fork in front: a metaphor for iterative AI coding. Vibe Coder #4.3: Iterative Development – Eating the Elephant One Bite at a TimeThe Vibe Coder's Handbook · Part 4.3 Artificial Intelligence / AI
  4. No. 27 A new chip ID card beside a paper form with boxes too small for it at a bank counter, illustrating an IPv6 payment gateway mismatch. 3D Secure Passed, Payment Failed: A Payment Gateway That Doesn't Know IPv6 Linux & Servers
  5. No. 26 Glass-like cubes carrying tech-stack icons locking together on a dark background Vibe Coder #2.1: Architectural Decisions – Choosing the Right Stack for AIThe Vibe Coder's Handbook · Part 2.1 Artificial Intelligence / AI
  6. No. 25 A cutaway of an old apartment building with a surveyor's table in front holding a marked-up blueprint, tape measure and checklist; a dashed outline of an illegal extra floor on the roof. Urban Renewal #1: Structural Survey – Make the Agent Read Before It WritesUrban Renewal · Part 1 Software Architecture
  7. No. 24 Five blank exam papers in a row on a school desk with a red wax-sealed envelope in front, an exam setup for an AI coding agent comparison Same Exam for Five Agents: The Answer Key Stays Sealed Artificial Intelligence / AI
  8. No. 23 A nearly empty desk under a lamp holding one note card and a brass key, with a crowded archive of folders behind it; the note, not the file, reaches the context window. Context Mode: Put the Note on the Agent's Desk, Not the File Artificial Intelligence / AI
  9. No. 22 Cutaway model of a building: a large rule book on a pedestal on the ground floor, smaller linked booklets in the rooms above, and a turnstile with a lowered barrier at the entrance, illustrating AGENTS.md and layered project rule files. Vibe Coder #4.2: Project Rule Files – The Constitution at the Root, By-laws in the FoldersThe Vibe Coder's Handbook · Part 4.2 Artificial Intelligence / AI
  10. No. 21 A developer adjusting a floating transparent UI dashboard instead of a code editor Vibe Coder #1.3: From Developer to Product EngineerThe Vibe Coder's Handbook · Part 1.3 Artificial Intelligence / AI
  11. No. 20 A horseshoe magnet above a haystack pulling steel needles out of the straw, illustrating MariaDB composite index order MariaDB Composite Index: Hold the Magnet by the Right End MySQL / MariaDB

Ongoing series

Series →

The Vibe Coder's Handbook

8 parts

Urban Renewal

1 part

Renovating legacy projects with AI coding agents without tearing them down: risk assessment, test scaffolding, step-by-step refactoring and a safe cutover. Chapter by chapter, on a real legacy PHP repository.

Topics

Artificial Intelligence / AI12 Code Wars2 JavaScript / TypeScript1 Linux & Servers1 MySQL / MariaDB5 Phalcon1 PHP4 Software Architecture1 Survival Guide for Developers4

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