Question

Whenever I try this,

$conn = mysqli_connect(example.com,user,password,database);

I don’t know what I’m doing wrong. My php version is php 5.3.above. Why is this code not working in a live website. Its fine in localhost.

Answer 1

define('DB_HOST','example.com');

should be

define('DB_HOST','localhost');

With localhost you are saying that PHP has to connect to the MySQL server that is running on the same server.
Unless you are trying to connect to a remove MySQL server, then you’ll have to fill in the address of that remote server.