Insert function

insert function

<?php 

function my_array_insert(&$array, $insert, $key_before) {
  $offset = 1;
  while (key($array) != $key_before) {
    next($array);
    $offset++;
  }
  $array_before = array_slice($array, 0,  $offset, TRUE);
  $array_after = array_slice($array, $offset, NULL, TRUE);
  $array  = array_merge($array_before, $insert, $array_after);
}