My oldest project was made during my internship at ＴＥＬＫＯＭ in 2016. Uploaded to source control for archivement and persistance purpose.
Pretty hellish project since I was very inexperienced at the time and did't even know that version control exist. Adding PHP to the mix (and a pure PHP at that) made the project even more chaotic.
A full-stack dashboard that handles customer complaints. It's nothing but a complex project since the size of the data being handled is considerable, considering that I was working in a regional office at the provincial level. Aside from typical CRUD operations, there are also other features such as scheduled tasks using CRON, user and session management, statistics, and aggregation.
Probably using atleast PHP version 7.
UI built in traditional way, using HTML and CSS. UI made using UIKit v1 or v2 (idk, cant remember). And surprise, it's even almost fully-responsive.
Mainly using JQuery to manipulate DOM and adding interactivity.
Since it's such an old project, i doubt this thing can even be ran properly even when i have the database ready.