What is an .inc and why use it?

Question

I often see examples in PHP that include.inc files. What is the meaning of .inc? What it is used for? What are the disadvantages and advantages of using it?

Answer 1

Note that You can configure Apache so that all files With .inc extension are forbidden to be retrieved by visiting URL directly.

see link:https://serverfault.com/questions/22577/how-to-deny-the-web-access-to-some-files