... and also connect to its postgresql db, using the free pgadmin gui client, from any PC on your LAN.
After the application / database is ready, you can access it using https://lapp.local from any LAN PC.
Backup the system regularly to avoid any issues.
These are covered in the video. Google Search helps in finding more about PHP development / troubleshooting.
Apart from Dynamic Applications, you can use this Virtual Machine, to host static webpages too, for the LAN environment.