PHP: Loading Setting from Parent Class?

DazzTyler

New member
Code:
require_once 'SystemComponent.php';

class DbConnector extends SystemComponent {

var $theQuery;
var $link;

//*** Function: DbConnector, Purpose: Connect to the database ***
function DbConnector(){

// Load settings from parent class
$settings = SystemComponent::getSettings();

First question: why do we need "require_once 'SystemComponent.php';" when this class is already an extension of the parent class SystemComponent.php.

Second question: Why do we need to load settings from the parent class, when its already extended. Are the variables not already accessible in the base class.
 
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