title: How to extract HTML tags from the web page generated at runtime
body: <p>I am using a SimpleHTMLDOM parser to extract HTML data from web pages. But I came across websites such as <a href="http://www.coursera.com" rel="nofollow">www.coursera.com</a> wherein the webpage is generated at runtime.</p>
  
  <p>I need to know has anyone tried parsing such pages?</p>
  
  <p>I am new to this field so some theory on this topic would help my understanding in parsing webpages.</p>