title: Input of email and url to be clickable
body: <p>I have a form that I process in PHP.  Users sometimes put their email address in the form or URLs.  These usually come out as text after I strip the input of tags.</p>
  
  <p>Recently my users started asking me to make their URLs and emails clickable when they pull up a page that displays their input (now pulled from a db).</p>
  
  <p>Could someone please suggest a common pattern or ways that this is handled?  Basically, if someone enters a url in a form, how do I make the url clickable instead of text when viewed?</p>
  
  <p>Thanks,
  Alex</p>