wp-html-api

To safely modify HTML attributes in WordPress plugins, use the WP_HTML_Tag_Processor from the HTML API. It performs safe attribute and class mutations on rendered content, avoiding the broken markup and security risks associated with regex.

The best way to mutate shortcode HTML output in WordPress is using the HTML API. Apply WP_HTML_Tag_Processor to inspect and modify rendered shortcode markup safely, then call get_updated_html() to retrieve the final modified content.

Yes, the WordPress HTML API handles data attributes and respects the WP 6.9 escaping behavior. Using WP_HTML_Tag_Processor ensures correct data-* attribute manipulation and safe escaping when mutating plugin HTML content.

To get the modified HTML after using WP_HTML_Tag_Processor, you must explicitly call the get_updated_html() method. This function returns the final HTML string reflecting all attribute, class, or text mutations applied during processing.

Yes, you can use WP_HTML_Processor for structural HTML handling and token serialization in widget markup. It works alongside WP_HTML_Tag_Processor to inspect and mutate rendered HTML content safely within WordPress plugins.

You should use the WordPress HTML API instead of DOMDocument for content filters to avoid security risks and broken markup. The HTML API provides native, safe server-side HTML inspection and mutation specifically designed for the WordPress environment.