Get Adjacent Images – More WordPress Functions

WordPress, just get the adjacent image links. I’ll tell you what to do with them!

WordPress is normally great about providing functions that have a return and an echo version.  In WordPress, if a function has the prefix get_, then it does not echo (print it into the content), but rather returns the result so that it can be saved as a variable, like so:  $example = get_example();

There are some functions that only have echo capability, so I wanted to share my work-around with you all.

Updated image_link functions

• adjacent_image_link() » get_adjacent_image_link()
• previous_image_link() » get_previous_image_link()
• next_image_link() » get_next_image_link()

To add the functions, paste the following code in your theme’s functions.php file:

// These functions are copied directly from wp-includes/media.php
// and modified to return the result instead of echo it.
function get_adjacent_image_link($prev = true) {
	global $post;
	$post = get_post($post);
	$attachments = array_values(get_children( array('post_parent' => $post->post_parent, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => 'ASC', 'orderby' => 'menu_order ID') ));
	foreach ( $attachments as $k => $attachment )
		if ( $attachment->ID == $post->ID )
			break;
	$k = $prev ? $k - 1 : $k + 1;
	if ( isset($attachments[$k]) )
		return wp_get_attachment_link($attachments[$k]->ID, 'thumbnail', true);
}
function get_previous_image_link() {
	return get_adjacent_image_link(true);
}
function get_next_image_link() {
	return get_adjacent_image_link(false);
}

Now you can use these functions on your website.  Any questions?  

Related posts:

1. Nofollow SEO for your WordPress Functions
2. Auto-Optimize WordPress Database without a Plugin
3. Save Coding Time by Creating Special-Case Categories in WordPress
4. WordPress Digg Shortcode Function – As Seen on WordPress.com
5. Get medium image size in WordPress

Tagged as: Functions, Functions.php, get_adjacent_image_link, get_next_image_link, get_previous_image_link, WordPress, WordPress Developer, WordPress Development, WordPress Functions