Quick mysql+php script

Quick mysql+php script

<?php

$mysqli = new mysqli("localhost", "root", "password", "database");

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

/*
$sql = "";
$mysqli->query($sql);
 */

$sql = "SELECT * FROM users";

$result = $mysqli->query($sql);
if ($result) {
    while ($row = $result->fetch_object()) {
        echo $user->email . '<br>';
    }

    $result->close();
    $mysqli->next_result();
}