example:
field_create_field(array(
'field_name' => 'field1',
'type' => 'text',
'cardinality' => 1,
'settings' => array(
'max_length' => '255',
),
));
field_create_instance(array(
'field_name' => 'field_1',
'entity_type' => $entity_type,
'bundle' => 'key_contact',
'label' => 'Mobile',
'required' => FALSE,
'widget' => array(
'weight' => 4,
'type' => 'text_textfield',
'module' => 'text',
'active' => 1,
'settings' => array(
'size' => 60
)
),
'settings' => array(
'text_processing' => 0,
'user_register_form' => FALSE
),
'display' => array(
'default'=>array(
'label' => 'above',
'type' => 'text_default',
'module' => 'text',
'weight' => 9
)
)
));
