Timeout when trying to add product with function.

Hello! I’m currently writing a function which will add products to my cart using a snippet provided in another example here. I’m using the latest version of WC, and I am running it on my local WAMP server.

I run the function, but when I do, I get a “The connection to localhost was interrupted.”. The function is as follows:

function wccustomaddtocart($product) {
$alreadyincart = false;
$cart = WC()->cart->getcart();
foreach( $cart as $cartitemkey => $values ) {
$product = $values['data'];

    if( $product == $_product->id ) {
        $already_in_cart = true;
        break;
    }
}

if( ! $already_in_cart ) {
    WC()->cart->add_to_cart( $product, 1 );
}
}

If I comment out the WC()->cart->addtocart( $product, 1 ); line, it does not time out, but obviously it doesn’t add the product either. The code itself looks sound to me. Is there any known issue with running addtocart on a localhost? Is there anything else that I can try to add my products? I am able to add to the cart products normally through WooCommerce, so this issue seems isolated to the function.

Thank you!

https://wordpress.org/plugins/woocommerce/