Code for MySQL connection with PHP
<?php
define('DB_SERVER','localhost');
define('DB_USER','root');
define('DB_PASS' ,'');
define('DB_NAME', 'dbname');
$con = mysqli_connect(DB_SERVER,DB_USER,DB_PASS,DB_NAME);
// Check connection
if (mysqli_connect_errno())
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
?>
1. In the below we can define our hostname. For local, you can use localhost. If you want to access the other host then put that host name or Server IP here
define('DB_SERVER','localhost');
2.This code for db user name. For local we use root. But you can create db user name whatever you want.
define('DB_USER','root');
3. Here we can define db password. For local you should leave blank.
define('DB_PASS' ,'');
4.Here we define our database name
define('DB_NAME', 'dbname');
5. The mysqli_connect() function opens a new connection to the MySQL server.
$con = mysqli_connect(DB_SERVER,DB_USER,DB_PASS,DB_NAME);