<?php

$dbHost = "localhost";
$dbUser = "root";
$dbPass = "root";
$dbName = "test23052017";
$dbConnection = mysqli_connect($dbHost, $dbUser, $dbPass, $dbName);

if(mysqli_connect_errno()){
	die("Database connection error ".mysqli_connect_error()." => ".mysqli_connect_errno());
}

$query = "UPDATE users
            SET lastname = 'Zovko', zip_code = 71000
            WHERE name = 'Ivo'";
$result = mysqli_query($dbConnection, $query);

if($result && mysqli_affected_rows($dbConnection) == 1){
	echo "Success";
} else {
	die("Query failed ".mysqli_error($dbConnection));
}

mysqli_close($dbConnection);