Use XMLWriter
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//https://developers.facebook.com/docs/marketing-api/dynamic-product-ads/product-catalog#feed-format function catalog(){ $writer = new XMLWriter(); $writer->openURI('php://output'); $writer->startDocument('1.0','UTF-8'); $writer->setIndent(4); $writer->startElement('rss'); $writer->writeAttribute('xmlns:g', 'http://base.google.com/ns/1.0'); $writer->writeAttribute('version', '2.0'); $site = $this->options_m->get_site_settings(2); $writer->startElement('channel'); $writer->writeElement('title', $site->title); $writer->writeElement('link', 'https://wecharming.life'); $writer->writeElement('description', $site->site_desc); $prods = $this->products_m->catalog(); foreach ($prods as $key => $prod) { $writer->startElement('item'); $writer->writeElement('g:id', $prod->id); $writer->writeElement('g:title', $prod->title); $writer->writeElement('g:description', $prod->summary); $writer->writeElement('g:link', base_url() . 'shop/product/' . $prod->id); $writer->writeElement('g:image_link', $prod->photo); $writer->writeElement('g:brand', 'WeCharming'); $writer->writeElement('g:condition', 'new'); $writer->writeElement('g:availability', 'in stock'); $writer->writeElement('g:price', $prod->price . ' TWD'); //https://www.google.com/basepages/producttype/taxonomy-with-ids.en-US.txt $writer->writeElement('g:google_product_category', 'Health & Beauty > Personal Care > Cosmetics > Skin Care'); $writer->endElement(); } $writer->endElement(); $writer->endElement(); $writer->endDocument(); $writer->flush(); } |