Custom payment description tags with Pronamic Pay.

pronamic-pay-payment-description-tags.php

<?php

/**
 * Pronamic Pay payment description tags.
 *
 * @param \Pronamic\WordPress\Pay\Payments\Payment $payment $payment Payment.
 * @return void
 */
function pronamic_pay_description_tags( $payment ) {
	// Customer.
	$customer_name = '';

	$customer = $payment->get_customer();

	if ( null !== $customer ) {
		$customer_name = strval( $customer->get_name() );
	}

	// Items.
	$items = [];

	$lines = $payment->get_lines();

	if ( null !== $lines ) {
		$items = array_map(
			function ( \Pronamic\WordPress\Pay\Payments\PaymentLine $line ) {
				return $line->get_name();
			},
			$lines->get_array()
		);
	}

	// Replace tags in description.
	$replacements = [
		'{customer:name}' => $customer_name,
		'{items}'         => implode( ', ', $items ),
	];

	$description = strtr( $payment->get_description(), $replacements );

	$payment->set_description( $description );
}

add_action( 'pronamic_pay_pre_create_payment', 'pronamic_pay_description_tags' );