PHP MySQL Database Connect 예제 소스코드 $servername = "localhost";$username = "name";$password = "password"; mysqli 객체지향$conn = new mysqli($servername, $username, $password);if ($conn->connect_error) { die("Connection failed: " . $conn->connect_error);}echo "Connected successfully";$conn->close(); mysqli 절차지향$conn = mysqli_connect($servername, $username, $password);if (!$conn) { die("Connection faile..