لدي مشكلة في الاتصال بقاعدة بيانات SQL

<?php

$servername = "localhost";

$username = "parsa";

$password = "Y";

// Create connection

$conn = mysqli_connect($servername, $username);

// Check connection

if (!$conn) {

 die("Connection failed: " . mysqli_connect_error());

}

echo "Connected successfully";

// sql to create table

$sql = "CREATE TABLE MyGuests (

id INT(6) UNSIGNED AUTO_INCREMENT PRIMARY KEY,

firstname VARCHAR(30) NOT NULL,

lastname VARCHAR(30) NOT NULL,

email VARCHAR(50),

reg_date TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP

)";

if ($conn->query($sql) === TRUE) {

 echo "Table MyGuests created successfully";

} else {

 echo "Error creating table: " . $conn->error;

}

$conn->close();

?>