Add link to product image

Hey guys,

For some reason the theme my client is using does not include the product thumbnails / image’s link to the image file. Meaning, I can’t use the lightbox to enlarge the image or any zoom magnifier plugins.

Maybe you could help me figuring out what do I need to edit?

This is the single-product.php code regarding the product images:

<div class="single_image">
                  <?php
                  if ((function_exists('has_post_thumbnail')) && (has_post_thumbnail())) {
                   echo the_post_thumbnail('page-single');
                 } else {
                   inkthemes_get_image(600, 300);
                 } ?></div>

The inkthemes_get_image function code is:

function inkthemes_get_image($width, $height) {
    $w = $width;
    $h = $height;
    global $post, $posts;
//This is required to set to Null
    $img_source = '';
    $permalink = get_permalink($id);
    ob_start();
    ob_end_clean();
    $output = preg_match_all('/<img.+src=[\'"]([^\'"]+)[\'"].*>/i', $post->post_content, $matches);
    if (isset($matches [1] [0])) {
        $img_source = $matches [1] [0];
    }
    $img_path = inkthemes_image_resize($img_source, $w, $h);
    if (!empty($img_path[url])) {
        print "<a href='$permalink'><img src='$img_path[url]' class='postimg' alt='Post Image'/></a>";

What do I need to do for it to work? :\

https://wordpress.org/plugins/woocommerce/