/**
* @param $isbn
* @return string
*/
function getAmazonCover($isbn)
{
$isbn = ISBN13toISBN10(preg_replace('/[^\\d]/', '', $isbn));
if ($isbn != '') {
$cover = 'https://images-eu.ssl-images-amazon.com/images/P/' . $isbn . '.MZZZZZZZ.jpg';
try {
list($width, $height, $type, $attr) = getimagesize($cover);
if ($width == 1 and $height == 1) {
$cover = asset('/images/no_book_cover.jpg');
}
} catch (Exception $e) {
$cover = asset('/images/no_book_cover.jpg');
}
} else {
$cover = asset('/images/no_book_cover.jpg');
}
return $cover;
}
<?php
global $post, $product;
?>
<?php
do_action('woocommerce_product_meta_start');
?>
<?php
if ($product->is_type(array('simple', 'variable')) && get_option('woocommerce_enable_sku') == 'yes' && $product->get_sku()) {
?>
<?php
$isbn_13 = $product->get_sku();
$isbn_13_converted = ISBN13toISBN10($isbn_13);
//for Amazon
?>
<?php
}
?>
<li><a href="http://www.amazon.com/dp/<?php
echo $isbn_13_converted;
?>
" title="Amazon"><img src="/wp-content/themes/pubspring_core_pubs/images/booksellers/500px-Amazon_com_logo_svg.png" alt="Amazon.com" style="height: 22px;" /></a></li>
<li><a href="http://search.barnesandnoble.com/booksearch/isbnInquiry.asp?EAN=<?php
echo $isbn_13;