Create a Custom Dynamic PHP Page on AV Arcade Script

Note: This guide shows the exact steps for AVArcade 3 script, but if you understand the idea you could apply similar changes to other versions of AVArcade or even to completely different PHP softwares. I run an arcade website using AVArcade software & wanted to add a custom page with some text in it, I could have done that using plain HTML but the page would have been rigid & kinda fake, even if I made it look like the other pages, there's data in the sidebar & navigation menus that is supposed to update itself & if I decided to edit the theme of the site I'd have to do the job again for my custom page. So the best was to be able to create a page that is just like the other pages created by the script, a dynamic PHP page. I'm not a PHP geek, I'm very careful when messing with PHP files, but I managed to track some codes from file to file inside the script & finally found the way to create just what I wanted, here's how I proceeded (you r