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Bug #79390 reset(new \ArrayObject()) return (bool) false in php7.4
Submitted: 2020-03-18 07:04 UTC Modified: 2020-03-18 07:28 UTC
From: zhongyunchang at yeah dot net Assigned: sjon (profile)
Status: Closed Package: Arrays related
PHP Version: 7.4.3 OS: Any
Private report: No CVE-ID: None
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 [2020-03-18 07:04 UTC] zhongyunchang at yeah dot net 
Description:
------------
---
From manual page: https://php.net/migration74
---

<?php
$arrayObject = new \ArrayObject();
$arrayObject->append('test string');
echo reset($arrayObject);

I geted "test string" in <=PHP7.3 but (bool) false in PHP7.4.x, not found any explain on official document.

Test script:
---------------
<?php
$arrayObject = new \ArrayObject();
$arrayObject->append('test string');
echo reset($arrayObject);

Expected result:
----------------
 "test string"

Actual result:
--------------
bool "false"

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 [2020-03-18 07:28 UTC] sjon@php.net
-Status: Open +Status: Closed -Type: Feature/Change Request +Type: Bug -Package: *General Issues +Package: Arrays related -Assigned To: +Assigned To: sjon
 [2020-03-18 07:28 UTC] sjon@php.net 
The change is documented here: https://www.php.net/manual/en/migration74.incompatible.php

>  Calling get_object_vars() on an ArrayObject instance will now always return the properties of the ArrayObject itself (or a subclass). Previously it returned the values of the wrapped array/object unless the ArrayObject::STD_PROP_LIST flag was specified.
> Other affected operations are:
>
>    reset(), current(), etc. Use Iterator methods instead. 

Although a bit more cumbersome, appending this will help you:

$i = $arrayObject->getIterator();
$i->rewind();
var_dump($i->current());
 [2020-03-18 08:58 UTC] zhongyunchang at yeah dot net 
Thank you for your help, I got it.
 
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