redline.com.pl/xml/csv-generate.php

<?php
ini_set('display_errors', 'on');
error_reporting(E_ALL ^ E_NOTICE ^ E_STRICT ^ E_WARNING ^ E_DEPRECATED);

include('../config/config.inc.php');
include('../app/config/parameters.php');
include('../config/defines.inc.php');
include( '../init.php' );
class SimpleXMLElementExtended extends SimpleXMLElement
{
  /**
   * Add value as CData to a given XML node
   *
   * @param SimpleXMLElement $node SimpleXMLElement object representing the child XML node
   * @param string $value A text to add as CData
   * @return void
   */
  private function addCDataToNode(SimpleXMLElement $node, $value = '')
  {
    if ($domElement = dom_import_simplexml($node))
    {
      $domOwner = $domElement->ownerDocument;
      $domElement->appendChild($domOwner->createCDATASection("{$value}"));
    }
  }

  /**
   * Add child node with value as CData
   *
   * @param string $name The child XML node name to add
   * @param string $value A text to add as CData
   * @return SimpleXMLElement
   */
  public function addChildWithCData($name = '', $value = '')
  {
    $newChild = parent::addChild($name);
    if ($value) $this->addCDataToNode($newChild, "{$value}");
    return $newChild;
  }



  /**
   * Add value as CData to the current XML node
   *
   * @param string $value A text to add as CData
   * @return void
   */
  public function addCData($value = '')
  {
    $this->addCDataToNode($this, "{$value}");
  }
}
$context = Context::getContext();

$id_lang = (int)Context::getContext()->language->id;
$start = 0;
$limit = '';
$order_by = 'id_product';
$order_way = 'DESC';
$id_category = false;
$only_active = true;
$products_partial = Product::getProducts($id_lang, $start, $limit, $order_by, $order_way, $id_category, $only_active, $context);
$products = Product::getProductsProperties($context->language->id, $products_partial);

$xml = new SimpleXMLElementExtended('<?xml version="1.0"?><feed xmlns="http://www.w3.org/2005/Atom" xmlns:g="http://base.google.com/ns/1.0"/>');
$xml->addChild('title', 'Redline');
$xml->addChild('updated', date('Y-m-d'));

foreach ( $products as $product )
{
  $product_combinations = false;
  $combination_tmp = false;
  $product_csv = false;

  $product_tmp = new Product( $product['id_product'] );
  $combinations = $product_tmp -> getAttributeCombinations( $context -> language -> id, true );
  foreach ( $combinations as $com )
  {
    $combination_tmp[ $com['id_product_attribute'] ][] = $com;
  }

  foreach ( $combination_tmp as $key => $val )
  {
    $product_com['id_product_attribute'] = $key;
    $product_com['quantity'] = Product::getQuantity( $product['id_product'], $key );
    $product_com['reference'] = $val[0]['reference'];

    foreach ( $val as $row )
    {
      if ( $row['group_name'] == 'Rozmiar' )
        $product_com['gsize'] = $row['attribute_name'];

      if ( $row['group_name'] == 'Rodzaj' )
        $product_com['gsize'] = $row['attribute_name'];
    }

    $product_combinations[] = $product_com;
  }

  if ( is_array( $product_combinations ) and count ( $product_combinations ) )
  {
    foreach ( $product_combinations as $product_combination_tmp )
    {
      $product_csv = false;

      $cover = Product::getCover($product['id_product']);
      $products['id_image'] = $cover['id_image'];
      $link = new Link;

      $product_csv['id'] = $product['id_product'] . $product_combination_tmp['id_product_attribute'];
      $product_csv['title'] = $product['name'];
      $product_csv['description'] = str_replace( array("\n", "\r"), '', strip_tags( $product['description_short'] ) );

      if ( $product_combination_tmp['quantity'] > 0 )
        $product_csv['availability'] = 'in stock';
      else
        $product_csv['availability'] = 'out of stock';

      $product_csv['inventory'] = $product_combination_tmp['quantity'];
      $product_csv['condition'] = $product['condition'];

      $price = Product::getPriceStatic($product['id_product'], true, null, 2, null, false, false);
      $price_sale = Product::getPriceStatic($product['id_product'], true, $product_combination_tmp['id_product_attribute'], 2, null, false, true);

      if ( (float)$price_sale != 0 and $price_sale != $price )
        $product_csv['price'] = $price_sale;
      else
        $product_csv['price'] = $price;

      $product_csv['link'] = $product['link'];
      $product_csv['image_link'] = 'https://' . $link -> getImageLink( $product['link_rewrite'], $products['id_image'], 'large_default' );
      $product_csv['brand'] = $product['manufacturer_name'];
      $product_csv['google_product_category'] = '';

      if ( $product_combination_tmp['gsize'] != null)
        $product_csv['size'] = $product_combination_tmp['gsize'];
    }

    if ( $product_csv['id'] )
      $products_csv[] = $product_csv;
  }
  else
  {
    $price = Product::getPriceStatic($product['id_product'], true, null, 2, null, false, false);

    $cover = Product::getCover($product['id_product']);
    $products['id_image'] = $cover['id_image'];
    $link = new Link;

    $product_csv['id'] = $product['id_product'];
    $product_csv['title'] = $product['name'];
    $product_csv['description'] = str_replace( array("\n", "\r"), '', strip_tags( $product['description_short'] ) );

    if ( $product_combination_tmp['quantity'] > 0 )
      $product_csv['availability'] = 'in stock';
    else
      $product_csv['availability'] = 'out of stock';

    $product_csv['inventory'] = $product_combination_tmp['quantity'];
    $product_csv['condition'] = $product['condition'];

    $price = Product::getPriceStatic($product['id_product'], true, null, 2, null, false, false);
    $price_sale = Product::getPriceStatic($product['id_product'], true, $product_combination_tmp['id_product_attribute'], 2, null, false, true);

    if ( (float)$price_sale != 0 and $price_sale != $price )
      $product_csv['price'] = $price_sale;
    else
      $product_csv['price'] = $price;

    $product_csv['link'] = $product['link'];
    $product_csv['image_link'] = 'https://' . $link -> getImageLink( $product['link_rewrite'], $products['id_image'], 'large_default' );
    $product_csv['brand'] = $product['manufacturer_name'];
    $product_csv['google_product_category'] = '';

    if ( $product_csv['id'] )
      $products_csv[] = $product_csv;
  }
}
// echo '<pre>' . print_r( $products_csv, true ); exit;
if ( $products_csv )
{
  $fp = fopen( 'csv-products.csv', 'w');
  fprintf( $fp, "\xEF\xBB\xBF");
  foreach( $products_csv as $line )
    fputcsv( $fp, $line );
  fclose( $fp );
}