I am not at all familiar with this toolbar, or the code that is used to embed it, you would need to refer to their documentation for details on how it would be embedded, but it should be possible.
when it comes right down to it, once it gets to the browser, a php page is exatly the same as an html page.
the only difference in a php page and an html page is what the server does to deliver the page to the browser.
with an html page, it's just a static page that the server delivers strait up.
a php page, the server first needs to compile, then it sends the complied html to the browser.
but the browser has no visibility to any of that processing that went on before it got delivered.