wc php free shipping function
function get_free_shipping_minimum($zone_name = 'England') {
if ( ! isset( $zone_name ) ) return null;
$result = null;
$zone = null;
$zones = WC_Shipping_Zones::get_zones();
foreach ( $zones as $z ) {
if ( $z['zone_name'] == $zone_name ) {
$zone = $z;
}
}
if ( $zone ) {
$shipping_methods_nl = $zone['shipping_methods'];
$free_shipping_method = null;
foreach ( $shipping_methods_nl as $method ) {
if ( $method->id == 'free_shipping' ) {
$free_shipping_method = $method;
break;
}
}
if ( $free_shipping_method ) {
$result = $free_shipping_method->min_amount;
}
}
return $result;
}