PHP/MySQL

<?php
$host = 'localhost';
$dbname = 'mongo';
$user = 'root';
$password = '';

$mysqli = new mysqli($host, $user, $password, $dbname);
if ($mysqli->connect_errno){
    echo "Failed to connect to MySQL: (" . $mysqli->connect_errno . ") " . $mysqli->connect_error;
    exit;
}

$res = $mysqli->query("SELECT * FROM basic WHERE id = ".rand(1, 100000));
if($res->num_rows > 0){
    while ($row = $res->fetch_assoc()) {
            echo 'Gooooooood';
        $mysqli->close();
        exit;
    }
}else{
    $mysqli->close();
    echo 'Bad';
    die;
}