<?php
    $servername = "host.com";
    $username = "user";
    $password = "pass";
    $dbname = "banco";

    $conn = new mysqli($servername, $username, $password, $dbname);

    if ($conn->connect_error) {
        die("connection failed: " . $conn->connect_error);
    }
?>

LoadModule php7_module "C:/php/php5apache2_4.dll"
PHPIniDir "C:/php/php.ini"

LoadModule php7_module "C:/php/php7apache2_4.dll"
PHPIniDir "C:/php/php.ini"

extension=php_mbstring.dll
extension=php_exif.dll; Must be after mbstring as it depends on it
;extension=php_memcache.dll
;extension=php_mysql.dll
extension=php_mysqli.dll

cd C:Apache24bin
httpd -k restart