Image captions in WordPress are actually shortcodes. Shortcodes are applied by the filter: $content = apply_filters(‘the_content’, $content); For example, WordPress creates the following code in your content when you enter an image caption: You need to still use apply_filters() in order to properly display content. (safe content display and all other shortcodes) If you don’t … Read more
Here’s what you can do. There’s a filter at the beginning of the shortcode execution function for the front end that will let you hijack the captions. Returning a non-empty value will stop execution of the shortcode, so if you just process the shortcode the way you want it to be processed and return that … Read more
Try this: $caption_info = array(); add_filter( ‘img_caption_shortcode’, ‘capture_caption’, 10, 3 ); function capture_caption( $blank = ”, $attr, $content ) { global $caption_info; $caption_info[] = array(‘attr’ => $attr, ‘content’ => $content ); return ‘ ‘; } It will save info from all captions into global $caption_info variable and suppress their display in content (space is returned … Read more
I don’t think you can do that, however you can implement this code in your functions file to at least allow for line breaks in single image captions Note: doesn’t work for gallery images (I am trying to find a way to make it work in galleries) /* ********************************************* Function to allow multi-line photo captions. … Read more
I wonder if this will work for you: add_action( ‘add_attachment’, function( $attachment_id ){ $a = get_post( $attachment_id ); if ( is_object( $a ) && ‘image’ === substr( $a->post_mime_type, 0, 5 ) ) wp_insert_attachment( array( ‘ID’ => $a->ID, ‘post_excerpt’ => $a->post_content ) ); }); or with less queries: add_action( ‘add_attachment’, function( $attachment_id ){ global $wpdb; if( … Read more
See my answer on question 3097 for a possible solution.
There’s really no documentation for it yet, but you’ll probably be able to do it hooking to the attachment_fields_to_save filter and inserting the default caption there. From the Codex: attachment_fields_to_save applied to fields associated with an attachment prior to saving them in the database. Called in the media_upload_form_handler function. Filter function arguments: an array of … Read more
You need to get the metadata of each image, add this to your functions.php file: function get_post_gallery_images_with_info($postvar = NULL) { if(!isset($postvar)){ global $post; $postvar = $post;//if the param wasnt sent } $post_content = $postvar->post_content; preg_match(‘/\[gallery.*ids=.(.*).\]/’, $post_content, $ids); $images_id = explode(“,”, $ids[1]); //we get the list of IDs of the gallery as an Array $image_gallery_with_info = … Read more
From what I understand the caption is a shortcode, so wrap get_the_content(…) inside strip_shortcodes() and it should remove it…
You can hook into the filter img_caption_shortcode and replace the whole captioned image. Here I’ve copied the caption shortcode function from WP4.5, left the version used if your theme declares HTML5 support as it is (using figcaption) and modified the non-HTML5 version to use h2. function wpse_233354_img_caption_shortcode( $empty, $attr, $content = null ) { // … Read more