PHP get variables in class from another file

Question

For example I have file config.php:

$host = 'localhost';
$db = 'logger';
$user = 'user';
$pwd = 'pass';

and file mysqlClass.php

class mysql{

public function connect(){

//hot get get variables form confing.php there ?
}

}

And I not know hot to get variables from confin.php in mysql class, I can't change config.php file

Answer 1

Just require_once() the file

public function connect() {
  require_once 'config.php';
  // ...code...
}