<?php array (
'form_build_id' => 'form-Z1_NDx4UI3AulsKWh_q0PpF3jAS9JLXnpZCCFyhJVJ8',
'form_token' => 'iysI1j-VGvyBuKc3x5aHAWCu7Eqjq-KBn0Pj8nLLDZ0',
'form_id' => 'field_test_entity_form',
'card_2[und][0]' => '_none',
'card_2[und][1]' => '0',
'op' => 'Save',
)