<?php
class Foo {
public $baz = array('bazz' => null);
public function bar() {
$key = 'baz';
$this->$key['bazz'] = 123;
var_dump($this->$key);
}
}
(new Foo())->bar();
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
array(1) {
["bazz"]=>
int(123)
}