The follow code works with the new Shipping Zones introduced in WooCommerce 2.6:
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| <?php | |
| /** | |
| * Hide shipping rates when free shipping is available. | |
| * Updated to support WooCommerce 2.6 Shipping Zones. | |
| * | |
| * @param array $rates Array of rates found for the package. | |
| * @return array | |
| */ | |
| function my_hide_shipping_when_free_is_available( $rates ) { | |
| $free = array(); | |
| foreach ( $rates as $rate_id => $rate ) { | |
| if ( 'free_shipping' === $rate->method_id ) { | |
| $free[ $rate_id ] = $rate; | |
| break; | |
| } | |
| } | |
| return ! empty( $free ) ? $free : $rates; | |
| } | |
| add_filter( 'woocommerce_package_rates', 'my_hide_shipping_when_free_is_available', 100 ); |
Claudio Sanches 
Hi Claudio, Where is the `$new_rates` variable defined?
Yes, I just fixed, thanks 🙂
Thanks!
Tks man