At my school library there is this system, made in php, to make monthly reports on student access, since everyone goes to the library everyone knows it and the guys who did it were considered the best of the school. So since I used to work on the library the director asked me to add some features to it, and I was like "Sure, cool I get to work on a real system", what I didn't know was that the system had no head or tail, the core were two files "load.php" and "db.php", everything was in those two files, no design patterns, no oops, safly that wasn't even the worst part, the modules were loaded through Ajax, which called files with lines like

`echo "<td>Student</td>";`

Literally most of the damn HTML was "echoed" WTH,