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* Add custom cart item data
function plugin_republic_add_cart_item_data( $cart_item_data, $product_id, $variation_id ) {
if( isset( $_POST['pr-field'] ) ) {
$cart_item_data['pr_field'] = sanitize_text_field( $_POST['pr-field'] );
return $cart_item_data;
add_filter( 'woocommerce_add_cart_item_data', 'plugin_republic_add_cart_item_data', 10, 3 );
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