title: PHP: If internet explorer 6, 7, 8 , or 9
body: <p>I want to do a conditional in PHP for the different versions of Internet Explorer along the lines of:</p>
  
  <p><code>if($browser == ie6){ //do this} elseif($browser == ie7) { //dothis } elseif...</code></p>
  
  <p>I have seen many variations on similar code, but looking for something super simple that is very easy to code to do some simple if and else and do different things.</p>
  
  <p>Thanks</p>
  
  <p>EDIT: I need this to show some different messages to users so CSS conditionals etc are no good.</p>