Attachment page image size

Can anyone give me a hand with changing the size of the image displayed on the attachment page (the page that displays when you click a gallery thumbnail and you have 'Link to attachment page' in the gallery settings.

I know I need to edit wp-content/themes/Creativity/attachment.php and I can guess it's the code shown below.

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<p>
            <a href="<?php echo $next_attachment_url; ?>" title="<?php echo esc_attr( get_the_title() ); ?>" rel="attachment">
               <?php echo wp_get_attachment_image( $post->ID, array( 900, 9999 ) ); ?>
            </a>
         </p>


I just need to know how to edit this to have the large, rather than the full size image displayed.

Thanks in advance.

Ken

Hi,

Please change the following line (from your fragment):

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<?php echo wp_get_attachment_image( $post->ID, array( 900, 9999 ) ); ?>


to:

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<?php echo wp_get_attachment_image( $post->ID, 'thumbnail' ); ?>


You can also use other image sizes like "large", "medium" etc.
https://codex.wordpress.org/Post_Thumbnails

Perfect! Thanks!