How to Post Codebase on GitHub without Revealing Database Login and Password Parameters in PHP

It’s quite simple.

Inside configuration file congif.php:

<?php 
  include("secret.php");
  $password = PASSWORD;  //defined in secret.php
  $username = USERNAME;
?>

Inside secret.php

<?php
  define('PASSWORD', 'example_password');    
  define('USERNAME', 'example_username') ;   
?>

Inside .gitignore, just add:

path/secret.php

path: the path to secret.php

Therefore, secret.php will not be uploaded to GitHub and keep these secret parameters safe!