<?php
$servername = "localhost";
$username = "root";
$password = "";
try {

    $conn = new PDO("mysql:host=$servername", $username, $password);
    $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

    $sql = "CREATE DATABASE ***nome DB***";
    $conn->exec($sql);
    echo "Database created ***nome DB*** successfully<br>";

    }
    catch(PDOException $e)
    {
    $conn->rollback();
    echo $sql . "<br>" . $e->getMessage();
    }

$conn = null;

?>