<?php

require_once('../app/Mage.php');
Mage::app();

#########################  THIS IS THE FILE THAT HOLDS THE SIMPLE SKU'S #########################################
$file = '../var/export/sku-list.csv';

#########################  THIS IS THE FILE YOU WILL EXPORT CONFIGURABLE DESCRIPTIONS TO  #######################
$file2 = fopen('../var/export/jare2.csv', 'w');


$csv = file($file, FILE_IGNORE_NEW_LINES);

$products = Mage::getResourceModel('catalog/product_collection')
            ->setStoreId(1)
            ->addAttributeToSelect('sku')
            ->addAttributeToFilter('sku', array('in' => $csv));

foreach ($products as $product) {

    $childId = $product->getId();
    $parentIds = Mage::getModel('catalog/product_type_configurable')->getParentIdsByChild($childId);

    $parents = Mage::getResourceModel('catalog/product_collection')
                        ->setStoreId(1)
                        ->addFieldToFilter('entity_id', array('in'=>$parentIds))
                        ->addAttributeToSelect('sku')
                        ->addAttributeToSelect('short_description');

    foreach ($parents as $parent) {
      $sku = $parent->getSku();

      if($description = $parent->getShortDescription()) {
          $description = $parent->getShortDescription();
      } else {
          $description = "";
      }

      $description = str_replace( "\r", "", $description); // Removes the irritating ^M sign that occurs when it's a Windows document
      $description = str_replace( "\n", "", $description); // Removes newlines

      fputcsv($file2, array(
          $sku,
          strip_tags($description)
      ), ',');
    }

}


fclose($file);
fclose($file2);