Database connection in PHP

First, we need to identify these 3 important details so we can connect in to our database.

You need to identify the connection address,the username and the password of the application of your database.(If you're not familiar with a database connection information, you can just search it in google)

So for example these are the details for your database connection, in my case I'm using xampp's sql database:
connection address: localhost or 127.0.0.1
username/login: root
password: (empty as default)

so these will be the code to connect to the database

Code:


<?php
   mysql_connect("localhost","root","");
   mysql_select_db("database")or die("No database");
?>


This code will let you connect and select specific database name of your choice, and if it fails to connect, then it will simply output a message that there's no database.