If you want to use get_attached_media(), you can try for example: if( has_post_thumbnail() ) { the_post_thumbnail(); } else { $imgs = get_attached_media( ‘image’ ); if( count( $imgs ) > 0 ) { $img = array_shift( $imgs ); echo wp_get_attachment_image( $img->ID, ‘thumbnail’ ); } } to display one of the attached images, if there’s no featured … Read more
Use this function get_attached_media $images = get_attached_media( ‘image’ ); You can also pass as a second parameter the ID of a post. This function returns and array of Post object, the ID is in the ID property.
Use the add_attachment hook to update the slug after the attachment has been inserted: function wpse_182454_attachment_id_as_slug( $post_id ) { if ( get_post_field( ‘post_name’, $post_id ) != $post_id ) { wp_update_post( array( ‘ID’ => $post_id, ‘post_name’ => ( string ) $post_id, ) ); } } add_action( ‘add_attachment’, ‘wpse_182454_attachment_id_as_slug’ );
I think your code is very close, try to use wp_get_attachment_image_src() instead: function thumb_medium( $atts, $content = null ) { // return wp_get_attachment_url( get_post_thumbnail_id( $post_id, ‘medium’) ); global $post; $thumb_url = wp_get_attachment_image_src( get_post_thumbnail_id($post->ID), ‘medium’ )[0]; if ($thumb_url) { return $thumb_url; } } add_shortcode(“get_urlthumb”, “thumb_medium”);
I tried to write some snippet with the help of WordPress codex. Please check below and update it further as per your needs. I hope this helps: global $post; $args = array( ‘numberposts’ => 1, ‘order’ => ‘ASC’, ‘post_mime_type’ => ‘image’, ‘post_parent’ => $post->ID, ‘post_status’ => null, ‘post_type’ => ‘attachment’, ); $attachments = get_children( $args … Read more
get_the_post_thumbnail ( $post/$post_id, $sizes, $attr ) will give you the featured image as html to output. get_post_thumbnail_id ( get_the_ID ( ) ) will give you the ID of the featured image so you can use it to get more information. Getting the thumbnail ID is essentially accessing the the post’s meta data: $image_id = get_post_meta( … Read more
I call it when I render a metabox on the edit page. ( Yeah, you shouldn’t be using globals in this context – use a foreach loop instead: function get_available_attachments( $post /* This is the post object being edited */ ) { $attachments = []; $attach_query = new WP_Query([ ‘post_type’ => ‘attachment’, ‘post_status’ => ‘inherit’, … Read more
To provide an answer to your first question and for future reference to tackle the problem you described with the slug already being in use when you first uploaded an attachment to the same parent. The following code will get rid of this ‘annoying’ thing (annoying in some use cases). This code rewrites the slug … Read more
A mild stab in the dark, you aren’t telling add_filter your accepted argument count. It’s an important element. It does require you to also be explicit about the priority too. add_filter( ‘woocommerce_email_attachments’, ‘attach_terms_conditions_pdf_to_email’, 10, 3 );
Here’s an (untested) example where we inject into the header tag on attachment’s pages, the canonical link of the attached post: add_action( ‘wp_head’, ‘wpse_attachment_parent_canonical’ ); function wpse_attachment_parent_canonical() { // Only target attachment’s pages if( ! is_attachment() ) return; $object = get_queried_object(); // Make sure we’re dealing with a WP_Post object if ( ! is_a( $object, … Read more