If else embedding inside html

Question

What is the correct way of embedding if else and elseif conditions inside html?

Answer 1

 "6") { ?>
   src="/images/img/morning.gif" 
  "12" && date("H")<"17") { ?>
 src="/images/img/noon.gif" 
   "17" && date("H")<"21") { ?>
   src="/images/img/evening.gif" 
   "21" && date("H")<"24") { ?>
  src="/images/img/night.gif" 
  
  src="/images/img/mid_night.gif"