Practical notes and questions about building websites, applications, APIs, databases, and CMS platforms.
A PHP request fails, but the visible clues are scattered. Nginx records a status and duration in one file. PHP records an exception somewhere else. Several requests may have reached the same route within the same second. Which application event belongs to the…
Read article
A small PHP application may keep a generated manifest, a JSON settings file, or a tiny cache on disk. Writing one is easy. The harder quest…
A PHP application may deploy successfully on Monday and fail on Friday even when its own source code has not changed. One possible cause is…
A small PHP application can call a remote API in only a few lines. The harder question begins when the other system is slow, unreachable, o…
A single external The page delegates more than file delivery. JavaScript loaded this way runs in the page's context. The OWASP Third Part…
A PHP page fails halfway through a request. What should the visitor receive, and what should the operator keep? Those are related questions…
A form accepts a name correctly, PHP prints it correctly in a debug message, and MariaDB stores something that still looks plausible. Later…
An application release can be rolled back by checking out an earlier commit. A database is less cooperative: it contains state accumulated …
A webhook endpoint can look almost trivial: accept an HTTP POST, decode some JSON, update a record, and return 200. The difficult question …
A small web application can execute two database statements successfully hundreds of times and still have a serious design gap. What happen…
