magento 获取评论数 how to get average product rating on a page in magento

1) if you intend to display the average rating of each product, add this helper method inside the page(like list.phtml):

<?php
$storeId = Mage::app()->getStore()->getId();
$summaryData = Mage::getModel('review/review_summary')->setStoreId($storeId)  ->load($_product->getId());
?>                                                                          
// Rating Percentage showing of a product
<div class="rating">(<?php echo $summaryData['rating_summary']; ?>%)</div>

 

2) Get the product Review anywhere in magento

<?php // review of a product at any page
$_reviews = Mage::getModel('review/review')->getResourceCollection();
$_reviews->addStoreFilter( Mage::app()->getStore()->getId() )
->addEntityFilter('product', $product->getId())
->addStatusFilter( Mage_Review_Model_Review::STATUS_APPROVED )
->setDateOrder()
->addRateVotes();
$avg = 0;
$ratings = array();
if (count($_reviews) > 0){
foreach ($_reviews->getItems() as $_review): ?>
<?php foreach( $_review->getRatingVotes() as $_vote ): ?>
<?php $ratings[] = $_vote->getPercent(); ?>
<?php endforeach; ?>
<?php endforeach;
$avg = array_sum($ratings)/count($ratings); }
?>
<?php if($avg > 0):?>

<div class=”ratings”>
<div class=”rating-box”>
<div class=”rating” style=”width: <?php echo ceil($avg) ; ?>%;”></div>
</div>
</div>

<?php endif;?>

 

3) Get the Review Count of a product in any page like list.phtml

<?php                                                                         // review count of a product
echo $reviewCount = $_product->getRatingSummary()->getReviewsCount() ? $_product->getRatingSummary()->getReviewsCount(): 0;
?>

 

来源： http://jpsolution.wordpress.com/tag/how-to-get-product-review-count-in-magento/