Two single.php files?

Question

I’m a fan of page templates – Here’s what I would do.

First create a page called something like Person Gallery, call it whatever you’d like.

Then we can create either a separate template page-person-gallery.php or open our page.php and run a conditional in our loop to test if we’re viewing the Person Gallery Page:

<?php if(have_posts()) : ?>
    <?php while(have_posts()) : the_post(); ?>
        <?php if($post->post_name == 'person-gallery') : /** Better to test for ID **/ ?>
            <!-- We're on the Person Gallery Page -->
        <?php else : ?>
            <!-- Run default info -->
        <?php endif; ?>
    <?php endwhile; ?>
<?php endif; ?>

Either method you pick, we can now build a query based off what we know about about the person, which is nothing right now. We will need to build a link on your single.php that can give us a bit more information about the person. So when you create your links to the person-gallery we can pass our person ID. It’ll look something like this:

<!-- Again, better getting permalink by ID -->
<a href="https://wordpress.stackexchange.com/questions/139905/<?php echo get_permalink( get_page_by_path("person-gallery' ) ).'?person='.$post->ID ?>">View Gallery</a>

Now when somebody clicks that link, it will pass us that person ID which we can then base our query on. So let’s create get our images:

<?php
    if(isset($_GET['person']) && is_numeric($_GET['person'])) {
        $pesonID = $_GET['person'];
        $attachments = get_children(
            array(
                'numberposts' => -1,
                'post_mime_type' => 'image',
                'post_parent' => $personID,
                'post_status' => 'any',
                'post_type' => 'attachment'
            )
        );

        /** Now we can display our images! **/
        $attachments = get_children(
            array(
                'numberposts' => -1,
                'post_mime_type' => 'image',
                'post_parent' => $post->ID,
                'post_status' => 'any',
                'post_type' => 'attachment'
            )
        );

        /** Now we can display our images! **/
        foreach($attachments as $imgID => $img){
            echo wp_get_attachment_image($imgID);
        }
    }
    else{
        echo "<p>No Images Found.</p>";
    }
?>

You can pass some sizes and such to wp_get_attachment_image, View The Codex to see what gets returned.

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