A function to get the attachment id of the first image attachment of a post, given the id of the post. Useful if you need the ID of an image that’s attached to a post when that image is not set as the post thumbnail (or featured image). This returns the image ID.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | /** * returns the attachment ID of the first attached image found for a post. * @param post ID of the parent post */function isa_get_attachment_id($parentid) { $attachments = get_children( array( 'post_parent' => $parentid, 'post_type' => 'attachment', 'numberposts' => 1, // show all -1 'post_status' => 'inherit', 'post_mime_type' => 'image', 'order' => 'ASC', 'orderby' => 'menu_order ASC' ) ); foreach ( $attachments as $attachment_id => $attachment ) { return $attachment_id; } } |
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