Programmatically remove specific shipping method - WooCommerce - php

Question

I need to remove my UPS shipping methods on the cart and checkout pages after the cart weight surpasses 150lbs. This is along the lines of what I'm thinking...
function is_it_over_onefifty($available_methods){
global $woocommerce;
if ($woocommerce->cart->cart_contents_weight > 150){
//diable shipping
unset( $available_methods['ups'] );
}
else{
//do nothing
}
return $available_methods;
}
add_filter( 'woocommerce_available_shipping_methods', 'is_it_over_onefifty', 10, 1);

Answer 1

add_filter( 'woocommerce_package_rates', 'define_default_shipping_method', 10, 2 );
function define_default_shipping_method( $rates, $package ) {
// Only unset rates if free_shipping is available
if ( isset( $rates['free_shipping:8'] ) ) {
unset( $rates['flat_rate:4'] );
}
return $rates;
}

Answer 2

I had started with a comment, but it became too large.
Below is some solid example code that will get you going where you need to. Note the idea is taken from here: http://www.bolderelements.net/support/knowledgebase/hide-shipping-method-based-on-weight/
add_filter( 'woocommerce_package_rates', 'hide_shipping_weight_based', 10, 2 );
function hide_shipping_weight_based( $rates, $package ) {
// if you don't know what the rates are, you can uncomment below to see all the rates that are available
// var_dump( $rates );
// Set weight variable
$cart_weight = 0;
// Shipping rate to be excluded
$shipping_type = 'ups_';
// Calculate cart's total
foreach( WC()->cart->cart_contents as $key => $value) {
$cart_weight += $value['data']->weight * $value['quantity'];
}
// only if the weight is over 150lbs find / remove specific carrier
if( $cart_weight > 150 ) {
// loop through all of the available rates
foreach( $rates AS $id => $data ) {
// if the rate id starts with "ups_"
if ( 0 === stripos( $id, $shipping_type ) ) {
unset( $rates[ $id ] ); // remove it
}
}
}
return $rates;
}