Adds an associative array into the specific position within the original associative array

general.php

/**
 * Add an associative array into any position within the 
 * original associative array
 *
 * @since  1.0.0
 * 
 * @param  array    $original_array   Original Associative array
 * @param  array    $array_to_insert  Associative array to insert into the 
 *                                      original
 * @param  integer  $insert_position  Position (starting at index 0) to 
 *                                      insert the new array into the original
 * @return array                      Amended array
 */
function insert_array_into_associatve_array($original_array, $array_to_insert, $insert_position)
{
  $end = array_splice($original_array, $insert_position);
  $start = array_splice($original_array, 0, $insert_position);
  return array_merge($start, $array_to_insert, $end);
}