Twelve production websites on one server, each with its own Composer dependency tree, and the oldest question in hosting: are they up to date, and is it safe to make them so? The dependency-currency gate answers it weekly and automatically — it inventories every vhost, checks each dependency tree against the PHP version that site's web server actually runs, queues the semver-safe updates for approval, and reports the breaking ones instead of applying them.
Danish coworking space — client brief, built as a working demo
Coworking and shared offices
A Danish coworking space wanted members to book a table by the hour and pay for it — because at 20 kr. per hour per table, a booking that has not been paid for is not a booking. tableflow.grn.dk is that system, built from the client's brief and running live: an hour grid that shows what is actually free, a fifteen-minute payment hold that releases itself, and an admin screen for the people who run the place. Plain PHP and MariaDB — no framework, no dependencies, 853 lines in seven files.
Safely inspect PHP and WordPress constants, distinguish missing values from false ones, and diagnose configuration drift without exposing production details.
Run PHP only on the homepage without brittle URL checks. Practical patterns for plain PHP, WordPress, Symfony, and Laravel, plus a live-site test plan.
