Chris Taylor Design

I wanted to share with you a brilliant piece of code I found for pulling images from posts.

On this site, you’ll see that I use image thumbnails on the blog homepage. Normally I’d use a custom field to link the image but I what I really wanted was a way to pull in the one wordpress generates according to your options in the media settings.

Luckily I found it via a forum post by endortrails.

To use it first paste this code into your functions.php file:

[php]
function postimage($size=medium) {
if ( $images = get_children(array(
‘post_parent’ => get_the_ID(),
‘post_type’ => ‘attachment’,
‘numberposts’ => 1,
‘post_mime_type’ => ‘image’,)))
{
foreach( $images as $image ) {
$attachmenturl=wp_get_attachment_url($image->ID);
$attachmentimage=wp_get_attachment_image( $image->ID, $size );
$imagelink=get_permalink($image->post_parent);

echo ‘<a href="’.$imagelink.’">’.$attachmentimage.apply_filters(‘the_title’, $parent->post_title).’</a>’;
}
}
}
[/php]

Then in your theme template you use:
[php]
<?php postimage(‘thumbnail’); ?>
[/php]
when you need the thumbnail url (remembering to wrap in php tags). You can also use:
[php]
<?php postimage(‘medium’); ?>
<?php postimage(‘large’); ?>
[/php]
for the other sizes wordpress generates as well. Note that these will only pull the first image from a post and only when you have uploaded it (so it appears in that posts image gallery).

Got any wordpress tips? Share them in the comments below.