October 12, 2026 · StackPioneer
Most legacy PHP apps have no usable staging environment, so upgrades get rehearsed in production. Here is a repeatable way to build one from a restored backup: scripted anonymization of the MySQL dump, neutered outbound mail and payment keys, and a refresh job that runs on a schedule.
Read moreSeptember 18, 2026 · StackPioneer
A lift-and-shift plan for a production PHP/MySQL app: inventory the server you actually have, EC2 plus RDS instead of a rewrite, uploads off the local disk, a replica-based database cutover, and a rollback path that stays warm for a week.
Read moreSeptember 17, 2026 · StackPioneer
Emoji that vanish, accented names that turn into question marks, and a schema half in latin1. Here is how to find out what encoding your bytes are actually in, convert without double-encoding, and handle the index-length and collation traps on MySQL 8.
Read moreSeptember 16, 2026 · StackPioneer
ALTER TABLE on a large InnoDB table is the migration that takes the site down at 2 a.m. Here is how to tell which changes are instant in MySQL 8, when to reach for pt-online-schema-change or gh-ost, and how to rehearse either one.
Read moreSeptember 11, 2026
MySQL 8.0 reaches end of life in April 2026 and 8.4 LTS is the successor. What actually breaks — mysql_native_password, removed replication options, retired variables — and how to rehearse the upgrade on a replica.
Read moreSeptember 10, 2026
PHP 8.1 and MySQL 5.7 are out of security support, and CentOS 7 and Ubuntu 20.04 followed them. Here are the commands that turn "we think we're patched" into a dated inventory with a remediation order.
Read moreJuly 21, 2026
A backup you have never restored is a hope. A monthly drill — restore, verify, boot the app, write it down — catches missing routines, charset mangling, and silent cron failures before the incident does.
Read moreMay 19, 2026
The 8.0 upgrade is one-way, so the checklist matters: the upgrade checker, the vanished query cache, collation strategy, auth-plugin compatibility, and a rehearsal that doubles as a backup test.
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