public function get_posted_data() {
		$skipped = array();
		$data    = array(
			'terms'                              => (int) isset( $_POST['terms'] ), // WPCS: input var ok, CSRF ok.
			'createaccount'                      => (int) ! empty( $_POST['createaccount'] ), // WPCS: input var ok, CSRF ok.
			'payment_method'                     => isset( $_POST['payment_method'] ) ? wc_clean( wp_unslash( $_POST['payment_method'] ) ) : '', // WPCS: input var ok, CSRF ok.
			'shipping_method'                    => isset( $_POST['shipping_method'] ) ? wc_clean( wp_unslash( $_POST['shipping_method'] ) ) : '', // WPCS: input var ok, CSRF ok.
			'ship_to_different_address'          => ! empty( $_POST['ship_to_different_address'] ) && ! wc_ship_to_billing_address_only(), // WPCS: input var ok, CSRF ok.
			'woocommerce_checkout_update_totals' => isset( $_POST['woocommerce_checkout_update_totals'] ), // WPCS: input var ok, CSRF ok.
		);
		foreach ( $this->get_checkout_fields() as $fieldset_key => $fieldset ) {
			if ( $this->maybe_skip_fieldset( $fieldset_key, $data ) ) {
				$skipped[] = $fieldset_key;
				continue;
			}

			foreach ( $fieldset as $key => $field ) {
				$type = sanitize_title( isset( $field['type'] ) ? $field['type'] : 'text' );

				switch ( $type ) {
					case 'checkbox':
						$value = isset( $_POST[ $key ] ) ? 1 : ''; // WPCS: input var ok, CSRF ok.
						break;
					case 'multiselect':
						$value = isset( $_POST[ $key ] ) ? implode( ', ', wc_clean( wp_unslash( $_POST[ $key ] ) ) ) : ''; // WPCS: input var ok, CSRF ok.
						break;
					case 'textarea':
						$value = isset( $_POST[ $key ] ) ? wc_sanitize_textarea( wp_unslash( $_POST[ $key ] ) ) : ''; // WPCS: input var ok, CSRF ok.
						break;
					case 'password':
						$value = isset( $_POST[ $key ] ) ? wp_unslash( $_POST[ $key ] ) : ''; // WPCS: input var ok, CSRF ok, sanitization ok.
						break;
					default:
						$value = isset( $_POST[ $key ] ) ? wc_clean( wp_unslash( $_POST[ $key ] ) ) : ''; // WPCS: input var ok, CSRF ok.
						break;
				}

				$data[ $key ] = apply_filters( 'woocommerce_process_checkout_' . $type . '_field', apply_filters( 'woocommerce_process_checkout_field_' . $key, $value ) );
			}
		}

		if ( in_array( 'shipping', $skipped, true ) && ( WC()->cart->needs_shipping_address() || wc_ship_to_billing_address_only() ) ) {
			foreach ( $this->get_checkout_fields( 'shipping' ) as $key => $field ) {
				$data[ $key ] = isset( $data[ 'billing_' . substr( $key, 9 ) ] ) ? $data[ 'billing_' . substr( $key, 9 ) ] : '';
			}
		}

		// BW compatibility.
		$this->legacy_posted_data = $data;

		return apply_filters( 'woocommerce_checkout_posted_data', $data );
	}