<?php array (
'instance[label]' => 'field_list_float',
'instance[description]' => '',
'field_list_float[und]' => '_none',
'field[cardinality]' => '1',
'field[settings][allowed_values]' => '0|Zero
.5|Point five
1.0|One',
'form_build_id' => 'form-wwEXUFIxKcj581t8iVVXmEzVbT8w1eyRtsMagvxPVII',
'form_token' => 'WW5ZVV-ukzM2P97RGkfnzDpli-9u2pWXsgLhN-bHwoc',
'form_id' => 'field_ui_field_edit_form',
'op' => 'Save settings',
)