<?php
  for ($i = 0; $i < 5; $i++) {
    echo "<p>count down from $i</p>";
  }
?>

<?php
  $num = array(1, 2, 3);
  $count = 0;
  while ($count <= count($num)) {
      echo "<p>Count from $num[$count]</p>";
      $count++;
  }
?>