title: get html code into a php variable
body: <p>I'm don't use PHP that much and right now I'm stuck at a problem.
  I need to save the site of a webbrowser as a pdf. I'm using right now mPDF (which was suggested in a wiki of stackoverflow) and it seems to work pretty well (I just have simply write a short html code into a php variable and then created the pdf). </p>
  
  <p>But now I must get the html code of the actual site in the browser and save it then into a php variable. How can I do that?</p>