making a universal db_access file

Question

Working on a project where i am using wamp and phpmyadmin to make a website. I am doing a little bit of databasing. I would like to have a file that would could work on both my local database as well as my live database. exp.

Local machine:

$server = 'localhost';
$database = 'exp_database';
mysqli_connect($server,'root','',$database);

Live:

$server = 'localhost';
$db_username = 'username';
$db_password = 'dbpass';
$database = 'exp_database';
$con=mysqli_connect($server,$db_username,$db_password,$database);

I have been looking for a tutorial or something that fits my situation. I might be going about this all wrong, but please direct me in the right direction.

Answer 1

This is what I use:

if ('localhost' == $_SERVER['HTTP_HOST']) {
    // [] you are local
} else {
    // [] you are live
}