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README: iterator_count()

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Filip Halaxa 2022-01-15 18:27:52 +01:00
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@ -63,8 +63,11 @@ foreach ($users as $id => $user) {
} }
``` ```
Random access like `$users[42]` or counting results like `count($users)` **is not possible** by design. Random access like `$users[42]` is not yet possible.
Use above-mentioned `foreach` and find the item or count the collection there. Use above-mentioned `foreach` and find the item or use [JSON Pointer](#parsing-a-subtree).
Count results via [`iterator_count($users)`](https://www.php.net/manual/en/function.iterator-count.php).
Remember it will still have to internally iterate the whole thing to get the count and thus will take about the same time.
Requires `ext-json` if used out of the box. See [Decoders](#decoders). Requires `ext-json` if used out of the box. See [Decoders](#decoders).