Show category on ‘new order’ mail

For administrative purposes, I need to know the category when I get a new order. I have tried to insert the code below in functions.php child theme, but it unfortunately reports errors.

Code that does not work in functions.php child theme:

function modfuel_woocommerce_before_order_add_cat($name, $item){

$product_id = $item[‘product_id’];

$_product = wc_get_product( $product_id );
$htmlStr = “”;
$cats = “”;
$terms = get_the_terms( $product_id, ‘product_cat’ );

$count = 0;
foreach ( $terms as $term) {
$count++;

if($count > 1){
$cats .= $term->name;
}
else{
$cats .= $term->name . ‘,’;
}

}

$cats = rtrim($cats,’,’);

$htmlStr .= $_product->get_title();

$htmlStr .= “<p>Category: ” . $cats . “</p>”;

return $htmlStr;
}

add_filter(‘woocommerce_order_item_name’,’modfuel_woocommerce_before_order_add_cat’, 10, 2);

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