Video, embed, html block usage out of the_content

Question

I have tried hundreds ways but i couldn't do yet. I am beginner, please someone help me !

When admin use for add/upload/embed video any 3 of these blocks; video, core-embed and html i will show the output without use the_content.

---

function swvideo( $html) {

if ( $html ) {
    return $html;
}

$post = get_post( $post );
if ( ! $html ) {
    return $html;
}

if ( ! function_exists( 'has_blocks' ) ) {
    return $html;
}

if ( ! has_blocks( $post->post_content ) ) {
    return $html;
}

$pattern = "/<!--\ wp:html.*-->([\s\S]*?)<!--\ \/wp:html -->/i";
preg_match_all( $pattern, $post->post_content, $html );
if ( ! empty( $html[1] ) ) {
    $html = reset( $html[1] );
}

return $html;

}

add_filter( 'the_content', 'swvideo');

Answer 1

I've added some comments to clarify a problem with your code:

function swvideo( $html) {

  if ( $html ) { // if $html == true
    return $html;
  }

  $post = get_post( $post ); // irrelevant
  if ( ! $html ) { // if $html != true
    return $html;
  }
  ...

As you can see, nothing past this point will be executed, because the input $html must either be equivalent to true, or not equivalent to true.

I can't tell clearly what you're trying to accomplish, but maybe advanced custom fields would help?