Elep

<?php
/**
 * Single Product Thumbnails
 *
 * @author 		WooThemes
 * @package 	WooCommerce/Templates
 * @version     3.5.1
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit; // Exit if accessed directly
}

if ( 'theme' == zuperla_eutf_option( 'product_image_thumb_style', 'theme' ) ) {
	global $post, $product, $woocommerce;

if ( method_exists( $product, 'get_gallery_image_ids' ) ) {
		$attachment_ids = $product->get_gallery_image_ids();
	} else {
		$attachment_ids = $product->get_gallery_attachment_ids();
	}

//Classes
	$product_gallery_classes = array( 'thumbnails' );

if ( $attachment_ids ) {
		$loop 		= 0;
		$columns 	= apply_filters( 'woocommerce_product_thumbnails_columns', 3 );
		//$product_gallery_classes[] = 'columns-' . $columns;

$product_gallery_class_string = implode( ' ', $product_gallery_classes );
		
		if ( version_compare( WC_VERSION, '3.3', '<' ) ) {
			$shop_thumbnail_size = 'shop_thumbnail' ;
		} else {
			$shop_thumbnail_size = 'woocommerce_thumbnail' ;
		}

?>
		<div class="<?php echo esc_attr( $product_gallery_class_string ); ?>">
			<div class="eut-thumbnails-wrapper">
				<div class="eut-thumbnails-inner">	
		<?php

foreach ( $attachment_ids as $attachment_id ) {

$classes = array( 'zoom' );

if ( $loop == 0 || $loop % $columns == 0 )
					$classes[] = 'first';

if ( ( $loop + 1 ) % $columns == 0 )
					$classes[] = 'last';

$image_link = wp_get_attachment_url( $attachment_id );

if ( ! $image_link )
					continue;

$image_title 	= esc_attr( get_the_title( $attachment_id ) );
				$image_caption 	= esc_attr( get_post_field( 'post_excerpt', $attachment_id ) );

$image       = wp_get_attachment_image( $attachment_id, $shop_thumbnail_size, 0, $attr = array(
					'title'	=> $image_title,
					'alt'	=> $image_title
					) );

$image_class = esc_attr( implode( ' ', $classes ) );
				
				//Check Title and Caption
				$image_title_caption = zuperla_eutf_option( 'product_gallery_title_caption', 'none' );
				$product_image_title = $product_image_caption = '';
				if ( !empty( $image_title ) && 'none' != $image_title_caption && 'caption-only' != $image_title_caption ) {
					$product_image_title = $image_title;
				}
				if ( !empty( $image_caption ) && 'none' != $image_title_caption && 'title-only' != $image_title_caption ) {
					$product_image_caption = $image_caption;
				}
				
				echo apply_filters( 'woocommerce_single_product_image_thumbnail_html', sprintf( '<div class="eut-thumb-item"><a href="%s" class="%s" data-title="%s" data-desc="%s" data-rel="prettyPhoto[product-gallery]">%s</a></div>', $image_link, $image_class, $product_image_title, $product_image_caption, $image ), $attachment_id, $post->ID, $image_class );

$loop++;
			}

?>
				</div>
			</div>
		</div>
		<?php
	}
} else {
	if ( ! function_exists( 'wc_get_gallery_image_html' ) ) {
		return;
	}

global $product;

$attachment_ids = $product->get_gallery_image_ids();

if ( $attachment_ids && has_post_thumbnail() ) {
		foreach ( $attachment_ids as $attachment_id ) {
			echo apply_filters( 'woocommerce_single_product_image_thumbnail_html', wc_get_gallery_image_html( $attachment_id  ), $attachment_id );
		}
	}
}
//Omit closing PHP tag to avoid accidental whitespace output errors.