Is there a function to list all uploaded images? How can I add one?

Question

Is there a PHP function that will return an array of all of my uploaded images? Or, failing that, how bout just my uploaded files?

The end goal is to display a slideshow on my homepage: have it rotate through each image, one at a time. Almost like an animated gif, in an infinite loop/cycle.

Answer 1

uploaded files are stored as attachment post type in WordPress. Use get_posts() and query for all attachments:

$args = array(
    'post_type' => 'attachment',
    'numberposts' => -1,
    'post_status' => null,
    'post_parent' => null ); 
$all_attachments = get_posts( $args );

EDIT - you can also set post_mime_type in get_posts to get all of type 'image/jpeg' for example.