<?php
$dbhost = "";
$dbname = "";
$dbuser = "";
$dbpass = "";

global $test_db;

$test_db = new mysqli();
$test_db->connect($dbhost, $dbuser, $dbpass, $dbname);
$test_db->set_charset("utf8");

if ($test_db->connect_errno) {
    printf("Connect failed: %s\n", $test_db->connect_error);
    exit();
}
?>