How to list all parent categories in magento

How to list all parent categories

I'm trying to get all parent categories except root category from the collections returned using Mage::getModel('catalog/category'); My code : $_category = Mage::getModel('catalog/category'); $_categories = $_category ->getCollection() ->addAttributeToSelect(array('name', 'image', 'description')); foreach ($_categories as $_category){ print_r($_category); die(0); echo $_category->getName().'<>';

}

Example :

<?php

Mage::getModel('catalog/category');

$_helper = Mage::helper('catalog/category');

$_category = Mage::getModel('catalog/category');

$_categories = $_category

->getCollection()

->addAttributeToSelect(array('name', 'image', 'description','custom_attribute','thumbnail'));

foreach ($_categories as $_category){

if($_category->getcustom_attribute() == 'yes'){

$layer = Mage::getSingleton('catalog/layer');

$layer->setCurrentCategory($_category);

$child= Mage::getSingleton('catalog/layer')->getCurrentCategory()->getId();

$imageSrc = Mage::getModel('catalog/category')->load($child)->getThumbnail();

$categoryModel = Mage::getModel('catalog/category')->load($_category->getId());

// Replace with Id of Cat

$productColl = Mage::getModel('catalog/product')->getCollection()

->addCategoryFilter($categoryModel)

->addAttributeToSort('price', 'asc')

->setPageSize(1)

->load();

$lowestProductPrice = $productColl->getFirstItem()->getPrice();

$img = $_imgUrl = Mage::getBaseUrl('media').'catalog/category/'.$imageSrc;

$url = $_helper->getCategoryUrl($_category);

$name = $_category->getName();

}

}

  ?>