Checking products in cart based on category name woocommerce?

Question

I\'m trying to trigger an echo statement if a certain category of product is in my cart, here\'s my code:

Answer 1

@Guillaume and others who helped- thanks for posting this for it was helpful to me. Once I started testing I realized that the code didn't work for all of my products. Some products in my case have categories with sub-categories and that was preventing the code from picking up the relevant categories on all the products. I altered your code slightly to create an array and it seems to be working well:

function check_product_in_cart() {
    //Check to see if user has product in cart
    global $woocommerce;

    // start of the loop that fetches the cart items

    foreach ( $woocommerce->cart->get_cart() as $cart_item_key => $values ) {
        $_product = $values['data'];
        $terms = get_the_terms( $_product->id, 'product_cat' );

        // second level loop search, in case some items have several categories
        // this is where I started editing Guillaume's code

        $cat_ids = array();

        foreach ($terms as $term) {
            $cat_ids[] = $term->term_id;
        }

        if(in_array(434, (array)$cat_ids) || in_array(435, (array)$cat_ids)) {

          //category is in cart!
           $product_in_cart = true;
        }
    }

    return $product_in_cart;
}

Answer 2

Edited my code following Barrell's advice and echo 'Bingo'!

Works like a charm, here's the code:

    function check_product_in_cart() {
        //Check to see if user has product in cart
        global $woocommerce;

        //assigns a default negative value
        //  categories targeted 17, 18, 19

        $product_in_cart = false;

        // start of the loop that fetches the cart items

        foreach ( $woocommerce->cart->get_cart() as $cart_item_key => $values ) {
            $_product = $values['data'];
            $terms = get_the_terms( $_product->id, 'product_cat' );

            // second level loop search, in case some items have several categories
            foreach ($terms as $term) {
                $_categoryid = $term->term_id;
                if (( $_categoryid === 17 ) || ( $_categoryid === 18 ) || ( $_categoryid === 19 )) {
                    //category is in cart!
                    $product_in_cart = true;
                }
            }
        }

        return $product_in_cart;
   }

Hope that can help someone!