gistfile1.php

<?php
function compare() {

	$sLevel = $this->get(__FUNCTION__, '');
	$iCatID = $this->get($sLevel, 0);
	if(empty($sLevel)) {
		throw new PPI_Exception('Unable to locate compare function\'s category level.');
	}
	if(empty($iCatID) || $iCatID < 1) {
		throw new PPI_Exception('Unable to locate category ID');
	}
	switch($sLevel) {

		case 'topcat':
			$sLevel = 'topcat_id';
			break;

		case 'catzero':
			$sLevel = 'catzero_id';
			break;

		case 'page':
			$sLevel = 'page_id';
			break;

		default:
			throw new PPI_Exception('Invalid Category Specified');
			break;

	}

	$oProduct = new APP_Model_Product();
	$aProducts = $oProduct->getProducts(array(
		'level'       => $sLevel,
		'cat_id'      => $iCatID,
		'get_spec'    => 2,
		'get_offers'  => 1,
		'get_reviews' => 1,
		'max_items'   => 5
	));

	$this->addStylesheet('compare.css');
	$this->load('product/compare', compact('aProducts'));
}