ap_delete_subscribers( array $where, string $event = null, integer $ref_id = null, integer $user_id = null )

function ap_delete_subscribers( $where, $event = null, $ref_id = null, $user_id = null ) {
	if ( null !== $event || null !== $ref_id || null !== $user_id ) {
		_deprecated_argument( __FUNCTION__, '4.1.5', esc_attr__( 'All 3 arguments $event, $ref_id and $user_id are deprecated.', 'anspress-question-answer' ) );
	}

	global $wpdb;

	$where = wp_array_slice_assoc( $where, array( 'subs_event', 'subs_ref_id', 'subs_user_id' ) );

	// Return if where clauses are empty.
	if ( empty( $where ) ) {
		return;
	}

	/**
	 * Action triggered right after deleting subscribers.
	 *
	 * @param string  $where   $where {
	 *          Where clauses.
	 *
	 *          @type string  $subs_event   Event type.
	 *          @type integer $subs_ref_id  Reference id.
	 *          @type integer $subs_user_id User id.
	 * }
	 *
	 * @category haveTest
	 *
	 * @since 4.1.5
	 */
	do_action( 'ap_before_delete_subscribers', $where );

	$rows = $wpdb->delete( $wpdb->ap_subscribers, $where ); // phpcs:ignore WordPress.DB

	if ( false !== $rows ) {
		$ref_id = isset( $where['subs_ref_id'] ) ? $where['subs_ref_id'] : 0;
		$event  = isset( $where['subs_event'] ) ? $where['subs_event'] : '';

		/**
		 * Action triggered right after deleting subscribers.
		 *
		 * @param integer $rows    Number of rows deleted.
		 * @param string  $where   $where {
		 *          Where clauses.
		 *
		 *          @type string  $subs_event   Event type.
		 *          @type integer $subs_ref_id  Reference id.
		 *          @type integer $subs_user_id User id.
		 * }
		 *
		 * @since 4.0.0
		 */
		do_action( 'ap_delete_subscribers', $rows, $where );
	}

	return $rows;
}