Stripping a string of both HTML and CSS using PHP?

Hey all,

I'm working on a project where the data I am receiving is heavily laden with inline css and I need just the text at its very heart inside a variable. I've been Googling for a while now and I've played with strip_tags() but this function seems to leave the inline CSS behind, which is a big no no for me. Does anyone know a way to remove not only the HTML tags but their inline CSS counterparts using PHP? Here is the code I'm trying to work with:

<?php echo strip_tags(do_shortcode('[cfdb-table form="Find Local Dealer" show="select-state" hide="company-name,contact-name,phone,email,address,city,zip-code,select-country,fax,findingUs,areasOfInterest,comments,captcha-872,Submitted Login,Submitted From,submit_time,$_POST(param),$_GET(param),$_COOKIE(param)" limit="0,1" header="false"]')); ?>

As you can see, it's a shortcode from Wordpress. But all this editing is being done in the template quickly after a form submission. So I just want to ditch the CSS and HTML so I can manipulate the text and use it for conditionals.

Somewhere online someone said something about using Regex for this but I'm not too handy with Regex at the moment and I wouldn't know where to start with it.

Any ideas?

Thanks!