PHP in 2018
summary
Claims concrete upgrades and numbers: PHP 7.2/7.3 drops memory and doubles or better performance in real sites, sometimes 3–4×; example arrays shrink from 109MB → 6MB; WordPress observed ~154 → 540 req/s and per-process memory from 140MB to 15MB; latency at Etsy drops ~460ms → 260ms. Tools and changes: feedback directed optimization gives ~2–3% more, no JIT yet, dead-code-elimination/escape analysis and Libsodium and Argon2 replace mcrypt. Static analyzer fan catches real bugs.
AI-written summary · about
chapters (9)
- 0:00Intro
- 4:00Birth of PHP
- 7:03Memory Usage
- 12:56Memory Use
- 17:03PHP 72
- 20:21DCE sccp
- 22:33PHP 72 trick
- 22:53PHP 73 trick
- 25:13Static analysis








