<?php // create some quick books for testing $books[0] = new stdClass(); $books[0]->title = "101 Fun Facts about Rocks"; $books[1] = new stdClass(); $books[1]->title = "Don't Touch that Button"; $books[2] = new stdClass(); $books[2]->title = "Coding for Dummies"; // instantiate shelf require 'shelf.php'; $shelf = new Shelf(); // loop through book array foreach ($books as $book) { $shelf->addToTop($book); // add to shelf } echo "<strong>Add All Books:</strong> "; echo "<pre>" . print_r($shelf, 1) . "</pre>"; // take one from stack $bookFromShelf = $shelf->removeFromTop(); echo "<strong>Grab Top Book:</strong> "; echo "<pre>" . print_r($bookFromShelf, 1) . "</pre>"; echo "<strong>Remaining Books:</strong> "; echo "<pre>" . print_r($shelf, 1) . "</pre>";