- var_dump: documentation ( source)
<?php
// Everything you enter here will be executed by our servers. Try it!
class A {
public $b;
public function A(B $b = null){
$this->b = $b;
}
}
class B {
public $a;
public function B(A $a = null) {
$this->a = $a;
}
}
var_dump(new A(new B(new A())));