Wordpress iframe function

/**
 * Allow <iframe> tags in post *and* page content.
 */
function my_allow_iframes_in_content( $allowed_tags, $context ) {
 // WP calls wp_kses_post() on both posts and pages, passing 'post' as the context.
 // But if you want to be explicit you can also check for 'page':
 if ( in_array( $context, [ 'post', 'page' ], true ) ) {
 $allowed_tags['iframe'] = [
 'src' => true,
 'width' => true,
 'height' => true,
 'frameborder' => true,
 'allowfullscreen' => true,
 'loading' => true,
 'style' => true,
 'class' => true,
 'id' => true,
 'name' => true,
 'sandbox' => true,
 'allow' => true,
 'referrerpolicy' => true,
 ];
 }
 return $allowed_tags;
}
add_filter( 'wp_kses_allowed_html', 'my_allow_iframes_in_content', 10, 2 );