Changed package

Given that numeric properties are accessible after array
conversion as of PHP 7.2.0, it seems wrong that this is not the
case with ArrayObjects.

There's also interesting behaviour when I try to get array copy from ArrayObject using method getArrayCopy.

Test script:
---------------
<?php

$object = new stdClass();
$object->prop = 'test1';
$object->{'1'} = 'test2';

$arrayObject = new ArrayObject($object);
$arrayCopy = $arrayObject->getArrayCopy();
var_dump($arrayCopy[1], $arrayCopy['1']); // can't access numeric property on array copy

$array = (array) $object;
var_dump($array[1], $array['1']); // but it works if I just cast stdClass to array

var_dump($arrayCopy, $array); // let's see differences between arrays

Actual result:
--------------
Notice: Undefined offset: 1 in /tmp/preview on line 8

Notice: Undefined offset: 1 in /tmp/preview on line 8
NULL
NULL
string(4) "test"
string(4) "test"
array(1) {
  ["1"]=>
  string(4) "test"
}
array(1) {
  [1]=>
  string(4) "test"
}

Yes, that is another instance of the same root cause, which is
that ArrayObject treats object properties ("proptables") as arrays
("symtables").  Yet another instance:

<?php
$object = new stdClass;
$object->{'1'} = 'test1';

$arrayObject = new ArrayObject($object);
$arrayObject['2'] = 'test2';

var_dump($object);
?>

We have just created an inaccessible numeric property on the
stdClass instance.

It seems to me that the fix is not trivial, and that it might
break some existing code.  As such, I don't think this should
be fixed for any stable PHP version, but rather documented.

Access property of object array In this JavaScript Program, we have access to the property of Empname and used the Map function to get the values of this property.The array.map () method is iterated over the element of the array and modifies elements of the array by applying some function and returning the modified element as a new array. 3.

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