Add WooCommerce "New Order" email recipient if a product in the order needs shipping Raw

wc-condtionally-add-email-recipient.php

<?php
/**
 * Add another email recipient for admin New Order emails if a shippable product is ordered
 *
 * @param string $recipient a comma-separated string of email recipients (will turn into an array after this filter!)
 * @param \WC_Order $order the order object for which the email is sent
 * @return string $recipient the updated list of email recipients
 */
function sv_conditional_email_recipient( $recipient, $order ) {
	// Bail on WC settings pages since the order object isn't yet set yet
	// Not sure why this is even a thing, but shikata ga nai
	$page = $_GET['page'] = isset( $_GET['page'] ) ? $_GET['page'] : '';
	if ( 'wc-settings' === $page ) {
		return $recipient; 
	}
	
	// just in case
	if ( ! $order instanceof WC_Order ) {
		return $recipient; 
	}
	$items = $order->get_items();
	
	// check if a shipped product is in the order	
	foreach ( $items as $item ) {
		$product = $order->get_product_from_item( $item );
		
		// add our extra recipient if there's a shipped product - commas needed!
		// we can bail if we've found one, no need to add the recipient more than once
		if ( $product && $product->needs_shipping() ) {
			$recipient .= ', [email protected]';
			return $recipient;
		}
	}
	
	return $recipient;
}
add_filter( 'woocommerce_email_recipient_new_order', 'sv_conditional_email_recipient', 10, 2 );