I've found a compact way to cycle through an associative array using for statement (not while, as it has been done in the most of examples below):

<?php

for (reset($array); list($key) = each($array);) {
  echo $key;
  echo $array[$key];
}

?>

or

<?php

for (reset($array); list($key, $value) = each($array);) {
  echo $key;
  echo $value;
  echo $array[$key];
}

?>

You hardly forget to add reset($array) code line using such construction.