MySQL Slow Query Optimisation
How to Find and Fix Slow MySQL Queries Before They Affect Performance Every slow query has a reason. The database is doing more work than it should b...
API Design for Business Web Applications
Why Simpler API Design Usually Beats Strict REST for Business Applications REST has become the default choice for web API design. Most developers ass...
PHP Separation of Concerns
What Separation of Concerns Actually Looks Like in PHP Most PHP codebases that become difficult to maintain started as files that mixed database logi...
PHP 8 Upgrade: What Actually Changed
PHP 8.4: What Actually Changed and When to Upgrade PHP 8.4 introduced property hooks and asymmetric visibility as its flagship features, building on ...
How to Automate Customer Confirmation Emails with Postfix on Ubuntu
Setting Up Automated Transactional Emails on Your Own Server If your business pays for SendGrid, Mailgun, or similar services just to send booking co...
UFW Firewall Setup for Ubuntu Web Servers
UFW Firewall Rules for Web Servers: What to Open, What to Block, and Why A newly installed Ubuntu server has every port open by default. This is acce...