Code-Snippets-Functions/Execute a function on a child site/WooCommerce/hide-shipping-methods-based-on-availability-of-other-shipping-methods.txt

function filter_woocommerce_package_rates( $rates, $package ) { 
    // Loop trough
    foreach ( $rates as $rate_id => $rate ) {
        // Checks if a value exists in an array, multiple can be added, separated by a comma
        if ( in_array( $rate_id, array( 'local_pickup:1', 'free_shipping:2' ) ) ) {
            unset( $rates['flat_rate:28'] );
        }
    }   
    
    return $rates;
}
add_filter( 'woocommerce_package_rates', 'filter_woocommerce_package_rates', 10, 2 );