In-depth technical writing on AI, ML, distributed systems, and modern engineering.
How PHP's PCRE engine silently corrupts Devanagari text without the /u flag, the bullet-point production bug, diagnosing json_encode() retur…
Why json_encode() output in onclick breaks HTML (and creates XSS), how JSON_HEX_TAG + htmlspecialchars(ENT_QUOTES) fixes it, and why data at…
Strict types and TypeError in production webhooks — the single missing argument that crashes a request after all work is done. Static analys…
Correlation IDs per request, the production allowlist that keeps PII out of logs, LOCK_EX on every write, JSON_UNESCAPED_UNICODE, and the di…
INSERT IGNORE as the atomic deduplication primitive — why SELECT+INSERT is wrong, TTL cleanup for the dedup table, and extending the pattern…
TTS → conversion → upload → send: per-step logging, text fallback at every failure point, and the circuit breaker pattern to stop retrying a…
File-naming with zero-padded sequences, the migrations tracking table with checksum verification, ALGORITHM=INSTANT for live ALTER operation…
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