Exporting svg with foreignObject tag as an Image using PHP or Java

Is there a way to export an <svg> tag containing <foreignObject> as an Image using PHP or Java? I have tried https://github.com/sampula/SVG.toDataURL but it does not support foreignObject.

The only reason I want to be able to encode the foreignObject as to 开发者_开发知识库base64 is because that the foreignObject tag contains some HTML and an image inside.

Is there anyway to do this?

Old question but, yes I've successfully done it using phantomjs