Add a BCC to certain defined emails sent from WooCommerce

add_bcc_to_certain_emails.php

<?php // only copy this line if needed

/**
 * Function adds a BCC header to emails that match our array
 *
 * Plugins:		WooCommerce
 * Original Author:	Jesse Pearson (https://gist.github.com/jessepearson)
 * Modified by: 	Andras Guseo
 * Last updated:	March 5, 2018
 * 
 * 
 * @param string $headers The default headers being used
 * @param string $object  The email type/object that is being processed
 */
function add_bcc_to_certain_emails( $headers, $object ) {

	// email types/objects to add bcc to
	// Comment out what you don't need
	$add_bcc_to = array(
		//'customer_renewal_invoice',	// Renewal invoice from WooCommerce Subscriptions
		//'customer_processing_order',	// Customer Processing order from WooCommerce
		//'cancelled_order',		// Customer Cancelled order from WooCommerce 
		//'customer_completed_order',	// Customer Completed order from WooCommerce
		//'customer_invoice',		// Customer Invoice email from WooCommerce
		//'customer_new_account',		// Customer New Account email from WooCommerce
		//'customer_note',		// Customer Note email from WooCommerce
		//'customer_on_hold_order',	// Customer On Hold order from WooCommerce
		//'customer_refunded_order',	// Customer Refunded order from WooCommerce
		//'customer_reset_password',	// Customer Reset Password email order from WooCommerce
		//'failed_order',			// Customer Failed order from WooCommerce
		'new_order',			// Customer New Order order from WooCommerce
		);

	// if our email object is in our array
	if ( in_array( $object, $add_bcc_to ) ) {

		// Change our headers
		$headers = array( 
			$headers,
			'Bcc: Me <[email protected]>' ."\r\n",
			);
	}

	return $headers;
}
add_filter( 'woocommerce_email_headers', 'add_bcc_to_certain_emails', 10, 2 );