WooCommerce/WordPress: redirect to checkout page after successful PayPal purchase

php-wp-woocommerce-paypal-redirect.php

<?php
#encode the return URL for PayPal so user's are redirected back to site after completing payment
add_filter( 'woocommerce_paypal_args','woocommerce_paypal_args_repair');
function woocommerce_paypal_args_repair( $paypal_args ) {
	global $woocommerce;
	if (!array_key_exists(‘cbt’,$paypal_args))
		$paypal_args['cbt'] = $woocommerce->cart->get_checkout_url();
		
	return $paypal_args;
}