从返回的数组中获取密钥

Question

I'm working in WooCommerce, but my question is related to basic PHP foreach statements.

I have a function that returns a multidimensional array. The topmost dimension, the key string is what I need. If you've familiar, $order->get_items();.

The order_item_id is stored as the key like this:

'488' => Array( /* Array stuffs */ )

That 488 is what I need. It wouldn't be a problem if the function I'm working with's foreach statement was:

foreach ($items as $k => $v)

Where I could just use $k, but it's set up as:

foreach ($items as $item)

Is there a way to set the value of the key in the array and pass it along as a parameter?

UPDATE:

Here is the function as it works.

foreach($order_items as $item) {
    $product = $order->get_product_from_item($item);
    $gc_enabled = get_post_meta($product->id, 'ignite_gift_enabled', true);
    if ( ! $gc_enabled)
        continue;
    $coupon_prefix = get_post_meta($product->id, '_coupon_prefix', true);
    if ( ! $coupon_prefix)
        $coupon_prefix = '';
    for ($x = 1; $x <= $item['qty']; $x++) { 
        $new_coupon = $this->adjust_voucher( $coupon_prefix, $mode, $msg_details, $order_id, $order_item_id, $product->id );
    }
}

$order_items is an array of items, the keys of which I need to pass along to other functions referenced, specificaly adjust_voucher.

Answer 1

Just change the foreach syntax to be foreach($items as $key => $item). This would give you access to $key while not impacting any existing code in the loop which relies on $item.