How to setup a redirect for webfinger and nodeinfo in your server configuration to make Nextcloud stop complaining about it.

How to use the AVIF image format in PHP; A1 or AVIF is a new image format that offers better compression than WebP, JPEG and PNG, and that already works in Google Chrome.

Knowing if a command exists before trying to call it from a PHP script is a useful way to prevent errors; testing if a command exists can be done using the command -v utility in linux, and where in Windows.

The changefreq element is optional and irrelevant when you include timestamps in your sitemaps.

There is no build-in way to check if an array is indexed (sequential) or associative in PHP, but you can easily create your own is_associative() function for it.

The Nextcloud update server seems to be suffering from high load at times, resulting in gateway timeout. Here is how to fix that annoying problem.

Mising PHP with HTML, CSS or JavaScript should be avoided, but there are ways to generate dynamic assets properly. Read this to learn how.

the keydown event is not an ideal way to detect text-input by the user; instead you should consider using the input event.

The DOMContentLoaded event can be used to tell when a page is fully loaded and ready to run scripts on the page; this may be useful if a script rely on dependencies that must be loaded for the script to work.

The time() function may be used to get the current time in seconds that has passed since the unix epoch, defined as January 1 1970 00:00:00 GMT.

Dynamically calling functions by their name, using input from the user, is a convenient alternative to if statements that allows to conditionally call specific parts of your code.

Strict mode can be enabled to enforce type hinting for scalar types; strict mode can be enabled with a declare directive at the top of your index.php, ans will also apply to included files.