title: PHP - Server Side HTML <iframe> Parsing / Rendering
body: <p>i`m having some dificulties on formulating a correct way to solve this problem:</p>
  
  <p>i have some html documents from external source that i have to do a bulk-parsing and store them in a database for some kind of a offline viewer (intranet) everything fine until there.</p>
  
  <p>but there is a trouble there, some of them have a iframe inside of it (and some of them, have another iframe inside a iframe), and i need to grab their full content.</p>
  
  <p>There is a way to render html (iframes) in a server side way instead loading it on local browser to get their rendered content?</p>
  
  <p>i have tried some ways to do it, like file_get_contents, curl and even messed with PHP buffering (ob_start / ob_get_contents) trying to get these contents correctly, but none of them seems to solve my problem.</p>
  
  <p>there is a pratical way or even a library instead of writing a brand new parser to do it? and if i have to write this, there is a good pratice tips to do that? </p>
  
  <p>Thank you!</p>