Implement catalog to meta feed transformation with variant extraction and output functions
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“VeLiTi”
256
assets/functions_meta.php
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256
assets/functions_meta.php
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<?php
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//------------------------------------------
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// Function: Transform Catalog to Meta Feed
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//------------------------------------------
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function catalogToMetaFeed($catalog, $config) {
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$meta_feed = [];
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foreach ($catalog as $product) {
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// Extract product data
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$product_id = $product['productcode'] ?? '';
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$product_name = $product['productname'] ?? '';
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$original_description = cleanText($product['productdescription'] ?? '');
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// Get meta description based on product code (with fallback to original)
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$description = getMetaDescription($product_id, $original_description);
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$base_price = floatval($product['price'] ?? 0);
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$url_slug = $product['url_slug'] ?? '';
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$main_image = buildImageUrl($product['full_path'] ?? '', $config['image_base_url']);
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$product_url = buildProductUrl($url_slug, $config['base_url']);
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// Check if product has variants
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$has_variants = !empty($product['configurations']);
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if (!$has_variants) {
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// Simple product - no variants
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$meta_feed[] = buildMetaProduct([
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'id' => $product_id,
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'title' => $product_name,
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'description' => $description,
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'price' => $base_price,
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'link' => $product_url,
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'image_link' => $main_image,
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], $config);
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} else {
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// Product with variants
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$variants = extractVariants($product, $base_price);
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foreach ($variants as $variant) {
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// Combine meta description with variant suffix
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$variant_description = $description . ' ' . $variant['description_suffix'];
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$meta_feed[] = buildMetaProduct([
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'id' => $variant['id'],
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'item_group_id' => $product_id,
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'title' => $variant['title'],
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'description' => $variant_description,
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'price' => $variant['price'],
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'link' => $product_url,
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'image_link' => $variant['image'],
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'additional_image_link' => $variant['additional_image'] ?? '',
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], $config);
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}
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}
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}
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return $meta_feed;
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}
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//------------------------------------------
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// Extract variants from configurations
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//------------------------------------------
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function extractVariants($product, $base_price) {
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$variants = [];
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$product_id = $product['productcode'];
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$product_name = $product['productname'];
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$image_base_url = $GLOBALS['meta_config']['image_base_url'];
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$configurations = $product['configurations'] ?? [];
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foreach ($configurations as $config) {
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if ($config['type'] === 'group') {
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$group_name = $config['assignment_name'] ?? 'Option';
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$attributes = $config['attributes'] ?? [];
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foreach ($attributes as $attr) {
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// Calculate price
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$attr_price = floatval($attr['price'] ?? 0);
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$attr_modifier = intval($attr['price_modifier'] ?? 1);
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$final_price = calculateVariantPrice($base_price, $attr_price, $attr_modifier);
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// Get images (using image_base_url for images)
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$variant_image = buildImageUrl($attr['alternative_media_full_path'] ?? '', $image_base_url);
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$additional_image = buildImageUrl($attr['full_path'] ?? '', $image_base_url);
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// Fallback to main product image if no variant image
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if (empty($variant_image)) {
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$variant_image = buildImageUrl($product['full_path'] ?? '', $image_base_url);
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}
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// Extract option name from item_name
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$item_name = $attr['item_name'] ?? '';
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$option_name = formatAttributeName($item_name);
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// Build variant
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$variants[] = [
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'id' => $product_id . '_' . ($attr['attribute_id'] ?? ''),
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'title' => $product_name . ' - ' . $option_name,
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'description_suffix' => 'Available with ' . $option_name . ' ' . strtolower($group_name) . '.',
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'price' => $final_price,
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'image' => $variant_image,
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'additional_image' => $additional_image,
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];
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}
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}
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}
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return $variants;
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}
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//------------------------------------------
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// Build Meta product row
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//------------------------------------------
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function buildMetaProduct($data, $config) {
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$product = [
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'id' => $data['id'],
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'title' => $data['title'],
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'description' => $data['description'],
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'availability' => $config['availability'],
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'condition' => $config['condition'],
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'price' => formatPrice($data['price'], $config['currency']),
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'link' => $data['link'],
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'image_link' => $data['image_link'],
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'brand' => $config['brand'],
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'google_product_category' => $config['google_product_category'],
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];
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// Add optional fields if present
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if (!empty($data['item_group_id'])) {
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$product['item_group_id'] = $data['item_group_id'];
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}
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if (!empty($data['additional_image_link'])) {
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$product['additional_image_link'] = $data['additional_image_link'];
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}
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return $product;
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}
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//------------------------------------------
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// Helper Functions
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//------------------------------------------
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function getMetaDescription($product_code, $fallback_description = '') {
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global $meta_descriptions;
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// First check for exact match
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if (isset($meta_descriptions[$product_code])) {
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return $meta_descriptions[$product_code];
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}
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// Then check for pattern match (starts with)
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foreach ($meta_descriptions as $pattern => $description) {
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if (strpos($product_code, $pattern) === 0) {
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return $description;
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}
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}
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// Return fallback if no match
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return $fallback_description;
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}
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function calculateVariantPrice($base_price, $modifier_price, $modifier_type) {
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if ($modifier_price <= 0) {
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return $base_price;
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}
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switch ($modifier_type) {
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case 1: // Addition
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return $base_price + $modifier_price;
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case 2: // Multiplication
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return $base_price * $modifier_price;
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default:
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return $base_price;
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}
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}
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function buildImageUrl($path, $base_url) {
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if (empty($path)) return '';
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return rtrim($base_url, '/') . '/' . ltrim($path, '/');
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}
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function buildProductUrl($slug, $base_url) {
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if (empty($slug)) return '';
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return rtrim($base_url, '/') . '/product/' . $slug;
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}
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function formatPrice($price, $currency) {
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return number_format($price, 2, '.', '') . ' ' . $currency;
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}
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function cleanText($text) {
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$text = strip_tags($text);
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$text = preg_replace('/\s+/', ' ', $text);
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return trim($text);
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}
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function formatAttributeName($name) {
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// Remove prefix like "bracelet_"
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$name = preg_replace('/^bracelet_/', '', $name);
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// Replace underscores with spaces
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$name = str_replace('_', ' ', $name);
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// Capitalize words
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return ucwords($name);
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}
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//------------------------------------------
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// Output Functions
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//------------------------------------------
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function outputMetaFeedCSV($meta_feed) {
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header('Content-Type: text/csv; charset=utf-8');
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header('Content-Disposition: attachment; filename="meta_product_feed.csv"');
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$output = fopen('php://output', 'w');
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// Write headers
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if (!empty($meta_feed)) {
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fputcsv($output, array_keys($meta_feed[0]));
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// Write data
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foreach ($meta_feed as $row) {
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fputcsv($output, $row);
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}
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}
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fclose($output);
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}
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function outputMetaFeedXML($meta_feed) {
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header('Content-Type: application/xml; charset=utf-8');
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$xml = new SimpleXMLElement('<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:g="http://base.google.com/ns/1.0"></rss>');
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$channel = $xml->addChild('channel');
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$channel->addChild('title', 'Morval Product Feed');
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$channel->addChild('link', $GLOBALS['meta_config']['base_url']);
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$channel->addChild('description', 'Product feed for Meta catalog');
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foreach ($meta_feed as $product) {
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$item = $channel->addChild('item');
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foreach ($product as $key => $value) {
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$xml_key = 'g:' . $key;
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$item->addChild($xml_key, htmlspecialchars($value));
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}
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}
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echo $xml->asXML();
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}
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function outputMetaFeedJSON($meta_feed) {
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//header('Content-Type: application/json; charset=utf-8');
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echo json_encode($meta_feed, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT);
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}
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?>
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