ArrayObject does not work with end() in PHP 7.4

On migrating to PHP 7.4 I have to deal with a different behavior of some array functions like reset(), current() or end() concerning ArrayObject. The following example produces different outputs:

<?php

$array = new ArrayObject(["a", "b"]);
$item = end($array);
var_dump($item);


$array = ["a", "b"];
$item = end($array);
var_dump($item);

With php 7.4 the output is:

bool(false)
string(1) "b"

On PHP versions before 7.4 the output is the following:

string(1) "b"
string(1) "b"

A end($array->getArrayCopy()) produces a notice, but might be a workaround if used with a variable.

Is there a way to emulate the behavior of end() with an ArrayObject or ArrayIterator? The ArrayObject could be very big, an iteration to the end might not be the best solution.

Answer

From PHP 7.4 array methods don’t operate on internal array, but on ArrayObject itself. I summarized two solutions for that.

1. Getting internal array of object.

$array = new ArrayObject(["a", "b"]);
$item = end($array->getArrayCopy());

2. Creating Facade of ArrayObject and adding custom method end() to upgraded class.

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Answer