Simple PHP function to sort an array by it' s collum.

array_sort_by_collum.php

function array_sort_by_collum(&$array, $col, $direction = SORT_ASC)
{
  $sort_col = array();
  foreach($array as $key => $row) {
    $sort_col[$key] = $row[$col];
  }
  array_multisort($sort_col, $direction, $array);
}