How to create .php files using php?

Question

What I'm trying to do is to make an installation file where the user enters the database, username, password, and host as a first step in a php system installation.

Answer 1

It is same as you are creating other files but just add the extension .php

$fp=fopen('filename.php','w');
fwrite($fp, 'data to be written');
fclose($fp);