A self-created exercise on bad algo for array ordering.

ArrayRecursiveOrdering.php

<?php
$array = array(5, 3, 2, 1, 7);


function recursive_ordering($array) {
  if (count($array) <= 1) {
    return $array;
  }
  // Find minimum
  $minumum_id = 0;
  $minimum = $array[$minumum_id];
  foreach ($array as $i => $el) {
    if ($el < $minimum) {
      $minimum = $el;
      $minumum_id = $i;
    }
  }
  unset($array[$minumum_id]);
  return array_merge(array($minimum), recursive_ordering($array));
}

$result = recursive_ordering($array);
var_dump($result);