WC_Coupon::get_short_info() │ public │ WC 1.0

Get the coupon information that is needed to reapply the coupon to an existing order. This information is intended to be stored as a meta value in the order line item corresponding to the coupon and should NOT be modified or extended (additional/custom data should go in a separate metadata entry).

The information returned is a JSON-encoded string of an array with the following coupon information:

0: Id
1: Code
2: Type, null is equivalent to 'fixed_cart'
3: Nominal amount (either a fixed amount or a percent, depending on the coupon type)
4: The coupon grants free shipping? (present only if true)

Method of the class: WC_Coupon{}

No Hooks.

Return

String. A JSON string with information that allows the coupon to be reapplied to an existing order.

Usage

$WC_Coupon = new WC_Coupon();
$WC_Coupon->get_short_info(): string;

WC_Coupon::get_short_info() code WC 9.4.2

woocommerce/includes/class-wc-coupon.php 
public function get_short_info(): string {
	$type = $this->get_discount_type();
	$info = array(
		$this->get_id(),
		$this->get_code(),
		'fixed_cart' === $type ? null : $type,
		(float) $this->get_prop( 'amount' ),
	);

	if ( $this->get_free_shipping() ) {
		$info[] = true;
	}

	return wp_json_encode( $info );
}