/*
$mysql_username = 'root';
$mysql_password = '1234';
$mysql_hostname = 'localhost';
$connect = new mysqli($mysql_hostname, $mysql_username, $mysql_password);
if ($connect->connect_errno) {
// echo '[연결실패] : ' . $connect->connect_error . '';
} else {
// echo '[연결성공!]';
}