I’m trying to implement XML signing to my API response, but I’m having an issue where I can’t make it into an DOMDocument due to it having ‘unknown’ XML entities (e.g. ä and other converted HTML characters).

I’m trying to implement XML signing to my API response, but I’m having an issue where I can’t make it into an DOMDocument due to it having ‘unknown’ XML entities (e.g. ä and other converted HTML characters).

I’m trying to implement XML signing to my API response, but I’m having an issue where I can’t make it into an DOMDocument due to it having ‘unknown’ XML entities (e.g. ä and other converted HTML characters).