Online PHP editor | output for G1VRc

@ 2022-01-10T23:56:32Z

<?php

class Foo
{
    public $bar = "";
}

$fooArr = [new Foo()];

function modifiesLocallyClonedFoo($fooArr)
{
    $fooArr[0] = clone $fooArr[0];
    $fooArr[0]->bar = "bar";
}

modifiesLocallyClonedFoo($fooArr);
var_dump($fooArr[0]);

// Creating a reference to an array item changes the way the array behaves?!?!?!?
$bar = &$fooArr[0];

modifiesLocallyClonedFoo($fooArr);
var_dump($fooArr[0]);

Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: object(Foo)#1 (1) { ["bar"]=> string(0) "" } object(Foo)#2 (1) { ["bar"]=> string(3) "bar" }
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 object(Foo)#1 (1) { ["bar"]=> string(0) "" } object(Foo)#2 (1) { ["bar"]=> string(3) "bar" }

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