Remove item from array if value equals - php

Question

On the Woocommerce order page, I have of items in the order, through which I want to loop and exclude a specific item by product id.
$order->get_order_number();
$items = $order->get_items();
foreach( $items as $key => $value) :
$exclude = $value->get_product_id();
if( in_array($exclude, array('3404') ) {
unset($items[$key]);
}
}
endforeach;
$new_items = array_values($items);
I thought this would loop through the original array, remove the $item whose $product_id == 3404 and then reindex.
I'm having no luck here. Any thoughts?
Solved ->
//Filter out colon cleanse duo
$items = array_filter($order->get_items(), function($item) {
return $item->get_product_id() != 3404;
});
//Randomize ids and grab one
shuffle($items);
foreach( $items as $item) :
$product_id = $item->get_product_id();
$product_name = $item->get_name();
break;
endforeach;

Answer 1

You should be able to do this:
$items = array_filter($order->get_items(), function($item) {
return $item->get_product_id() != 3404;
});
This iterates over $items and passes like a foreach each value to $item. If the callback of array_filter returns a true, the value will be kept else dropped.
You even can pass $order->get_items() directly in without fetching the items to an array.
Additionally if you require to exclude more than one, as asked in your comment, you can do like so:
$items = array_filter($order->get_items(), function($item) {
return !in_array($item->get_product_id(), [3404, 6890]);
});