<?php
// initiate a global variable
global $bundle_of_functionality;

/**
 * A PHP Class that does things
 */
class Class_That_Does_Stuff {

  /**
   * A public class property
   * 
   * (variables that float out here are called
   *   properties & are accessible everywhere 
   *   inside the class)
   */
  public $words_to_say = 'do stuff';

  /**
   * A public method
   * 
   * (functions in classes are called methods..
   *   how pretentious)
   */
  public function do_stuff() {
    // '$this' is a magical keyword to 
    // reference our class object
    echo $this->words_to_say;
    // later we'll put $this into $bundle_of_functionality
  }

}
// throw the class into our global variable..
// we now have an "object" stashed in a variable.
$bundle_of_functionality = new Class_That_Does_Stuff();