exclude-webp.php

<?php
/**
 * Plugin Name: Imagify: Skip &lt;picture&gt; Tag Replacement
 * Description: Skip &lt;picture&gt; tag replacement for &lt;img&gt; tags that are already in &lt;picture&gt; tags. Just add either data-itoi-skip-picture="yes" attribute or "itoi-skip-picture" class to &lt;img&gt; tags that should be skipped.
 * Version: 1.0
 * Author: WP Media
 * Author URI: https://wp-media.me/
 * Licence: GPLv2
 *
 * Copyright 2021 WP Media
 */
​
defined( 'ABSPATH' ) || die( 'Cheatin\' uh?' );
​
add_filter( 'imagify_webp_picture_images_to_display', 'itoi_skip_picture_tag_replacement' );
function itoi_skip_picture_tag_replacement( $images ) {
  foreach ( $images as $i => $image ) {
    if ( $image[ 'attributes' ][ 'data-itoi-skip-picture' ] === 'yes' 
        || preg_match( '/\bitoi-skip-picture\b/', $image[ 'attributes' ][ 'class' ] )
    ) {
      unset( $images[ $i ] );
    }
  }
  return $images;
}