Magento getProductCount() on subcategory - magento

Question

the getProductCount() in the second level of category echo count print out 0, i try different way but i diddn't figure out like mage get collection etc, i didn'd find any solution at this question
<?php
$_category = $this->getCurrentCategory();
$collection = Mage::getModel('catalog/category')->getCategories($_category->entity_id);
$helper = Mage::helper('catalog/category');
?>
<?php foreach ($collection as $cat):?>
<?php
$cur_category = Mage::getModel('catalog/category')->load($cat->getId());
$_img = $cur_category->getThumbnailUrl();
?>
<div class="grid_4">
<div class="mineContent_grid_4">
<dl>
<dt>
<a href="<?php echo $helper->getCategoryUrl($cat);?>">
<?php echo $cat->getName();?>
<img src="<?php echo $_img?>" title="<?php echo $cat->getName();?>" width="173" height="208"/>
</a>
</dt>
<?php $childLevel2Category = Mage::getModel('catalog/category')->getCategories($cat->entity_id);
?>
<dd>
<ol>
<?php foreach ($childLevel2Category as $catLevel2) { ?>
<?php
$cur_category2 = Mage::getModel('catalog/category')->load($cat->getId());
$count = $cur_category2->getProductCount();
?>
<li> <?php echo $catLevel2->getName();?> <span>(<?php echo $count ?>)</span></li>
<?php } ?>
</ol>
</dd>
</dl>
</div>
</div>
<?php endforeach;?>

Answer 1

You have this code:
<?php
$cur_category2 = Mage::getModel('catalog/category')->load($cat->getId());
$count = $cur_category2->getProductCount();
?>
This loads $cur_category2 with $cat->getId(), which is your parent category and not the current category. I think you want this:
<?php
$cur_category2 = Mage::getModel('catalog/category')->load($catLevel2->getId());
$count = $cur_category2->getProductCount();
?>

Answer 2

Here's a snippet that should help you. All my snippet does is get the product count for the category. I hard coded a category ID of 4, but your code should work, getting the current category. You may want to isolate this code into a function to keep it simpler, then just reference it from your existing page. It essentially loads a collection of products, by category, filtering out products that aren't visible.
$_category = Mage::getModel('catalog/category')->load(4);
$collection = Mage::getResourceModel('catalog/product_collection')->addCategoryFilter($_category);
Mage::getSingleton('catalog/product_status')->addVisibleFilterToCollection($collection);
Mage::getSingleton('catalog/product_visibility')->addVisibleInCatalogFilterToCollection($collection);
echo $collection->count();

Answer 3

try this example
$categories = Mage::getModel('catalog/category')->load(2)->getChildrenCategories();
$productCollection = Mage::getResourceModel('catalog/product_collection');
$productCollection->addCountToCategories($categories);
var_dump($categories);
where 2 - category id
also check php class Mage_Catalog_Block_Navigation in Magento