params['tree'])) ->embed( $content, $this->file, function($src, array $attributes, Raw $file) { $content = base64_encode(file_get_contents($file->getPath())); $attr = ''; foreach ($attributes as $name => $value) { $attr .= ' ' . $name . '="' . htmlentities($value, ENT_QUOTES, 'UTF-8', false) . '"'; } return ""; } ); return $content; } }