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Query for discount codes.
Parameters:

$args (array) – Array of arguments, all of which are optional:

$id (int) – A discount ID to only return that discount. Default empty.

$id__in (array) – An array of discount IDs. Default empty.

$id__not_in (array) – An array of discount IDs to exclude from the results. Default empty.

$name (string) – The name of a discount code.

$amount (int|float|string) – Filter by the discounted amount.

$unit (string) – Filter by unit (“percentage” or “flat”).

$code (string) – Filter by discount code.

$status (string) – Filter by discount status (“active” or “disabled”).

$one_time (int) – Set to `1` to only retrieve one-time discounts. Set to `0` to only retrieve recurring discounts. Omit to retrieve all.

$expiration_query (array) – Filter by expiration date. See WP_Date_Query for supported formats. Default empty.

$date_created_query (array) – Filter by the date the discount code was created. See WP_Date_Query for supported formats. Default empty.

$date_modified_query (array) – Filter by the date the discount code was last modified. See WP_Date_Query for supported formats. Default empty.

$count (bool) – True to return the number of results, false to return an array of RCP_Discount objects. Default false.

$fields (array) – Array of fields to return. Accepts any known column names or empty to return RCP_Discount objects. Default empty.

$number (int) – The number of results to retrieve. Default 20.

$offset (int) – Number of discounts to offset the query. Default 0.

$orderby (string) – Column to order results by. Accepts `id`, `name`, `code`, `use_count`, `max_uses`, `status`, `expiration`, `date_created`, and `date_modified`. Default `id`.

$order (string) – How to order results. Accepts `ASC` and `DESC`. Default `DESC`.

$search (string) – Search term(s) to retrieve matching discounts for. This searches the “name”, “description”, and “code” columns. Default empty.

Return values:

(array) An array of RCP_Discount objects if results are found. Empty array if no results are found.

Introduced: Version 3.3.
Examples:
Retrieve up to 100 active discount codes.
$discounts = rcp_get_discounts( array(
‘status’ => ‘active’,
‘number’ => 100
) );

Retrieve the ID numbers of discounts that expire between January 1st, 2000, and December 31st of the current year.
$discounts = rcp_get_discounts( array(
‘expiration_query’ => array(
‘after’ => ‘2000-01-01 00:00:00’,
‘before’ => date( ‘Y-12-31 23:59:59’ ),
‘inclusive’ => true
),
‘fields’ => ‘id’
) );