<?php
$data = array (
  22 => 
  array (
    'identifier' => 
    array (
      0 => 'store_type',
    ),
  ),
  20 => 
  array (
    'identifier' => 
    array (
      0 => 'position',
    ),
  ),
  19 => 
  array (
    'identifier' => 
    array (
      0 => 'position',
      1 => 'rent_type',
      2 => 'room_type',
    ),
  ),
  18 => 
  array (
    'identifier' => 
    array (
      0 => 'position',
      1 => 'renovation',
      2 => 'room_type',
    ),
  ),
  17 => 
  array (
    'identifier' => 
    array (
      0 => 'pet_class',
    ),
  ),
  16 => 
  array (
    'identifier' => 
    array (
      0 => 'dog_breeds',
      1 => 'animal_sex',
      2 => 'from',
    ),
  ),
  15 => 
  array (
    'identifier' => 
    array (
      0 => 'sex',
    ),
  ),
  13 => 
  array (
    'identifier' => 
    array (
      0 => 'new_old',
      1 => 'from',
    ),
  ),
  12 => 
  array (
    'identifier' => 
    array (
      0 => 'car_year',
      1 => 'new_old',
      2 => 'from',
    ),
  ),
  11 => 
  array (
    'identifier' => 
    array (
      0 => 'carpool_type',
    ),
  ),
  10 => 
  array (
    'identifier' => 
    array (
      0 => 'bike_brand',
      1 => 'from',
      2 => 'new_old',
    ),
  ),
  9 => 
  array (
    'identifier' => 
    array (
      0 => 'car_brand',
      1 => 'car_year',
      2 => 'new_old',
      3 => 'from',
    ),
  ),
  8 => 
  array (
    'identifier' => 
    array (
      0 => 'ebike_brand',
      1 => 'new_old',
      2 => 'from',
    ),
  ),
  6 => 
  array (
    'identifier' => 
    array (
      0 => 'sex',
      1 => 'education',
      2 => 'graduate',
    ),
  ),
  4 => 
  array (
    'identifier' => 
    array (
      0 => 'salary',
    ),
  ),
  3 => 
  array (
    'identifier' => 
    array (
      0 => 'pc_brand',
      1 => 'new_old',
      2 => 'from',
    ),
  ),
  2 => 
  array (
    'identifier' => 
    array (
      0 => 'from',
      1 => 'new_old',
    ),
  ),
  23 => 
  array (
    'identifier' => 
    array (
      0 => 'motobrand',
      1 => 'from',
    ),
  ),
);
?>