Get an ACF field with a Block from another Post

• chrispink

• February 17, 2025 at 2:31 pm

There was a question about this back in 2019 but the answers there were unsatisfactory although they offered pointers.

So…

If you want to output a field within an acf block on another post;

(warning, it’s a bit buried)

function extract_acf_field( $post_id, $block_name, $field ) {

    $post_content = get_post( $post_id );
    $blocks =  parse_blocks( $post_content->post_content );

    foreach ($blocks as $block) {
    
        if ( $block_name === $block['blockName'])  {
          foreach ($block['attrs'] as $attr) {
            if (is_array($attr)) {
                foreach ($attr as $key => $value) {
                    if ($field === $key) {
                        return $value;
                    }
                }
            }
          }
        }
    }
}