$hostname = "localhost";
$username = "root";
$password = "password";
$dbname = "logindb";

$conn = new mysqli($hostname, $root, $password, $dbname);

// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

$myquery = "select * from user";
if (mysqli_query($conn, $myquery)) {
    echo "Records retrieved.";
} else {
    echo "Error : " . mysqli_error($conn);
}