## Generate / attach Image srcsets from ACF Image Field

Question

I currently have an ACF save post action that takes an image and assigns it to be the featured image. One problem I am having is displaying the srcsets.

<img
src="<?php echo esc_url( $img_src ); ?>" alt="<?php echo$image['alt']; ?>" title="<?php echo $image['alt']; ?>" />   add_action('acf/save_post', 'my_acf_save_post_image'); function my_acf_save_post_image($post_id ) {

$posttype = get_post_type($post_id);
$wistia_image_url = get_field('image',$post_id);
$wistia_video_url = get_field('wistia', false, false); if (($posttype == 'post' && !empty($wistia_image_url)) && empty($wistia_video_url) ) {
$img_src = wp_get_attachment_image_url($wistia_image_url['id'], 'mobile-large' );

$attach_data = wp_generate_attachment_metadata($wistia_image_url['id'], $img_src ); // Assign metadata to attachment wp_update_attachment_metadata($wistia_image_url['id'], $attach_data ); #Not working. First parameter has to be the actual image file from what I've read? wp_image_add_srcset_and_sizes($wistia_image_url, $attach_data,$wistia_image_url['id']);

// And finally assign featured image to post
set_post_thumbnail( $post_id,$wistia_image_url['id'] );
}
}


I understand that the get_field of an image element will return sizes that has all the sizes, but individually. Is there a way to assign those sizes into the srcset of an attachment so when I use wp_get_attachment_image_srcset, it would pull the srcset in one go rather than setting them all individually?

0
1 month 2023-02-15T23:58:33-05:00 0 Answers 0 views 0