How to flip an array correctly?

Question

PHP

PHP gurus tell me please, there is a basket in php + AJAX, I write goods to the session, then I display them through AJAX in a loop:
foreach ($_SESSION['basket'] as $key => $value) {
Everything works. Now I want to show the array "back to front" I use:

foreach (array_reverse($_SESSION['basket']) as $key => $value) {

The data is displayed in a cycle "back to front", the same is all ok. Now the task is to get the key, if you use just $key, then it will print 1,2,3,4,5 in order. How to "flip" $key from large to small?
I hope it's clear ^_^

Answer 1

Parameter list
array: The input array.
preserve_keys: If set to TRUE, the keys will be preserved. Non-numeric keys are not affected by this option and are always preserved.

php.net/manual/en/function.array-reverse.php