Get Cart Tax Total programmatically in WooCommerce - php

Question

How do you get the tax total in WooCommerce in the functions.php page in WordPress, Using :
global $woocommerce;
$discount = $woocommerce->cart->tax_total;
But is not returning any value.
How can I get Cart Tax Total?
Essentially I want the Tax to calculate for the user, but then have it reduced as the customer will pay the taxes on COD.
Full Code below:
add_action( 'woocommerce_calculate_totals', 'action_cart_calculate_totals', 10, 1 );
function action_cart_calculate_totals( $cart_object ) {
if ( is_admin() && ! defined( 'DOING_AJAX' ) )
return;
if ( !WC()->cart->is_empty() ):
$cart_object->cart_contents_total *= .10 ;
endif;
}
//Code for removing tax from total collected
function prefix_add_discount_line( $cart ) {
global $woocommerce;
$discount = $woocommerce->cart->tax_total;
$woocommerce->cart->add_fee( __( 'Tax Paid On COD', 'your-text-domain' ) , - $discount );
}
add_action( 'woocommerce_cart_calculate_fees', 'prefix_add_discount_line' );

Answer 1

global $woocommerce; $woocommerce->cart is obsolete for Cart. Use WC()->cart instead.
Here you can use directly $cart (object) argument instead…
The correct property is taxes instead of tax_total.
Is better to use WC_Cart get_taxes() method intead to be compatible with WooCommerce version 3.0+
To achieve what you are trying to Your code is going to be:
// For Woocommerce 2.5+ (2.6.x and 3.0)
add_action( 'woocommerce_cart_calculate_fees', 'prefix_add_discount_line', 10, 1 );
function prefix_add_discount_line( $cart ) {
if ( is_admin() && ! defined( 'DOING_AJAX' ) )
return;
$discount = 0;
// Get the unformated taxes array
$taxes = $cart->get_taxes();
// Add each taxes to $discount
foreach($taxes as $tax) $discount += $tax;
// Applying a discount if not null or equal to zero
if ($discount > 0 && ! empty($discount) )
$cart->add_fee( __( 'Tax Paid On COD', 'your-text-domain' ) , - $discount );
}
Code goes in function.php file of your active child theme (or theme) or also in any plugin file.
This code is tested and works.

Answer 2

You are using wrong function name. Correct function is as below :-
WC()->cart->get_tax_totals( );
Instead of using $woocommerce->cart->tax_total; to get cart total tax, you can do this by subtracting cart total excluding tax from cart total.
You can do this by following code :-
$total_tax = floatval( preg_replace( '#[^\d.]#', '', WC()->cart->get_cart_total() ) ) - WC()->cart->get_total_ex_tax();
If you want to get array for all taxes then you can get through below code :-
WC()->cart->get_taxes( );

Answer 3

We can use this function taht worked for me.
WC()->cart->get_total_tax();