You must make the href="<?php echo $image->large_image_path; ?>"
to somehing like href="show_image.php?image_path=<?php echo $image->large_image_path; ?>"
In show_image.php you can den get the path of the image by $_REQUEST['image_path']
, and add it into the code like this:
<img src="<?php echo $_REQUEST['image_path']; ?> />
The you can add information or styling around the bigger image.
So, link to a PHP page instead of the image. Even better, put the image path in to a database, and use the image id to get the path and information of the image. Like this:
href="show_image.php?image_id=<?php echo $image->id; ?>">
and then in show_image.php, given that you have a method for getting the image:
<?php $image = GetImage($_REQUEST['image_id']); ?>
<img src="<?php echo $image->large_image_path; ?> />
<?php echo $image->description; ?>
<?php echo $image->date; ?>
Hope this helps you on the way.