production checklist for cleaning up legacy configuration in php

a reliable php setup is less about clever code and more about repeatable habits. in this guide, we look at cleaning up legacy configuration on a single vps and keep the steps focused on production work.

production checks

large content sites need predictable background work. queues, cron events, and import scripts should be idempotent, logged, and safe to run again. that makes recovery much easier when a request stops halfway through.

database changes need extra care. check the existing indexes, inspect the query plan, and test the migration on a copy of real data. the fastest query in development can still become the slowest request in production.

final class health_check {
    public function handle(): array {
        return ['ok' => true, 'checked_at' => time()];
    }
}

implementation checklist

• inspect cache headers
• test logged-in traffic
• purge only the affected route
• measure response time
• keep a rollback command ready

final notes

the best result is not only a faster or cleaner php implementation. it is a change that another developer can inspect, understand, and safely repeat. keep the final commands, metrics, and assumptions close to the article so future maintenance is easier.