- var_dump: documentation ( source)
<?php
class Foo
{
public $references;
private $bar;
public function __construct()
{
$this->references = ['bar' => & $this->bar];
unset($this->baz);
}
public function & __get($name)
{
if (! isset($this->$name)) {
var_dump('initialized');
$this->$name = 'initialized - ' . $name;
}
return $this->$name;
}
}
$foo = new Foo();
var_dump($foo->references);
$foo->references['bar'] = 'bar pre-initialized';
var_dump($foo->bar);