Classes
Databases store data in tables, which define rules for each column such as the data type or length. For example, here is...
Your site's header provides navigation and is visible on every page. It's important for it to be usable and look good...
Dynamic components can change after they are loaded, without refreshing the page. Modals A panel overlaying your main...
Cron is an OS utility for scheduling commands to run on a recurring schedule. Crontab In unix based systems, running...
Some useful techniques for finding and fixing problems. Stacktrace When you get an error, it should tell you which line...
XDebug is a code debugger that lets you stop your code while it's running, and step through line by line. You can see...
A PHP HTTP client for fetching content from remote urls. \Drupal::httpClient() Default http client in Drupal (It's...