Question

So if I have a variable in a php file I just made , if I put it in the same folder as other php files and include it into one of them , I can use any variable from that file right?
Sorry if it’s a bit of noobish

Answer 1

Basically yea. Running the include is equivalent to pasting the code.

Specifically, from the PHP manual:

When a file is included, the code it contains inherits the variable scope of the line on which the include occurs. Any variables available at that line in the calling file will be available within the called file, from that point forward. However, all functions and classes defined in the included file have the global scope.

In general the PHP manuals are pretty much self explained. You will find there most answers for basic questions as this one.