View the source on Github.
Just wrote my first line of PHP two days ago (April 24, 2020, in case you're reading this later), and here's my first project! Simple to-do list app with a SQLite database (this is coincidentally also my first SQL project). You can add new tasks, mark tasks complete, "uncomplete" tasks, and delete them, too. The task list is arranged so that incomplete tasks show up first; incomplete tasks are then arranged in descending order of creation date, and completed tasks are arranged in descending order of completion date.
This project also uses prepared statements to guard against SQL injection.
Hope you enjoy this demo, and let me know if you have any questions!