<?php
class sqldb
{
public $DB;
DBNAME
function conetdb()
{
$this->DB=new mysqli('localhost','$ACC','$PWD','$DBNAME','3306')or die("Erro from DB 0"); ...
https://en.wikipedia.org/wiki/Electronics Electronics comprises the physics, engineering, technology and applications that deal with the emission, flow and control of electrons in vacuum and matter...