class - Change PHP Object Instance to a Parent -

i have class base has property called load object of class load. load class has function called view includes pages. need call,

this similar codeigniter's $this->load->view("test.php");

load class

class load {     public function view($page){         //this function loads views display         include($page);     }     public function model($class){         //loads model classes     }     public function library($class){         //loads libraries     } } 

base class

class base {     function __construct(){         $this->load = new load();     } } 

index page

$base = new base(); $base->load->view("test1.php"); 

this1.php

echo "testing1\n";  $this->load->view("test2.php"); 

test2.php

echo "testing2"; 

the output should be

testing1 testing2 

what want think follow factory pattern. (at least, that's mean if want $view variable contain instance of load class)

make constructor protected, class can create new instances, in base class add static method, e.g. 'factory' returns instance of desired class.

then code like

$view=base::factory(); $view->view("test1.php");