PHP-MYSQL CONNNECTION SCRIPT

<?php
$v = mysqli_connect("localhost","root","","mydb");
if (mysqli_connect_errno()) {
    echo mysqli_connect_error();
    exit();
} else {
    echo "Successful database connection, happy coding!!!";
}
?>

cOURTESy
https://www.developphp.com/video/PHP/MySQL-Database-Tables-Creation-Script-Logic