<?
srand(time());
echo time()."<hr>";
$i = rand() % 3;
switch ($i) {
case 0:
  $v = "<marquee behavior=alternate>This is zero</marquee>";
  print $v;
  break;
case 1:
  echo "This is one.
  This line is not error.
  Because echo can display in this type.";
  break;
case 2:
  $v = "This is THAILAND";
  echo strtoupper($v)."<br>";  # THIS IS THAILAND
  echo strrev($v)."<br>";      # DNALIAHT SI SIHT
  echo str_replace("i","<b>i</b>",$v); # Th<b>i</b>s <b>i</b>s THAILAND
  break;
}
?>