PHP Snippet: Add Privacy Policy Acceptance Checkbox @ WooCommerce Checkout

privacy-policy-woocommerce.php

/**
 * @snippet       Add privacy policy tick box at checkout
 * @how-to        Watch tutorial @ https://businessbloomer.com/?p=19055
 * @author        Rodolfo Melogli
 * @compatible    WooCommerce 3.6.3
 * @donate $9     https://businessbloomer.com/bloomer-armada/
 */

// Add this code where ?
// You can place PHP snippets at the bottom of your child theme functions.php file (before "?>
  
add_action( 'woocommerce_review_order_before_submit', 'bbloomer_add_checkout_privacy_policy', 9 );
    
function bbloomer_add_checkout_privacy_policy() {
   
woocommerce_form_field( 'privacy_policy', array(
   'type'          => 'checkbox',
   'class'         => array('form-row privacy'),
   'label_class'   => array('woocommerce-form__label woocommerce-form__label-for-checkbox checkbox'),
   'input_class'   => array('woocommerce-form__input woocommerce-form__input-checkbox input-checkbox'),
   'required'      => true,
   'label'         => 'I\'ve read and accept the <a href="/privacy-policy">Privacy Policy</a>',
)); 
   
}
   
// Show notice if customer does not tick
    
add_action( 'woocommerce_checkout_process', 'bbloomer_not_approved_privacy' );
   
function bbloomer_not_approved_privacy() {
    if ( ! (int) isset( $_POST['privacy_policy'] ) ) {
        wc_add_notice( __( 'Please acknowledge the Privacy Policy' ), 'error' );
    }
}