Introducing the HTML API in WordPress 6.2

This post was co-authored by Adam Zielinski @zieladam and Dennis Snell @dmsnell

WordPress 6.2 introduces WP_HTML_Tag_Processor – a tool for block authors to adjust HTML tag attributes in block markup within PHP. It’s the first component in a new HTML processing API.

Updating HTML in WordPress has always required using uncomfortable tools. Regular expressions are difficult and prone to all kinds of errors. DOMDocument is resource-heavy, fails to handle modern HTML correctly, and isn’t available on many hosting platforms.

WP_HTML_Tag_Processor takes the first step towards bridging this gap.

The Tag Processor can reliably update HTML attributes

The Tag Processor