1--TEST-- 2GC 029: GC and destructors 3--INI-- 4zend.enable_gc=1 5--FILE-- 6<?php 7class Foo { 8 public $bar; 9 public $x = array(1,2,3); 10 function __destruct() { 11 if ($this->bar !== null) { 12 $this->x = null; 13 unset($this->bar); 14 } 15 } 16} 17class Bar { 18 public $foo; 19 function __destruct() { 20 if ($this->foo !== null) { 21 unset($this->foo); 22 } 23 } 24 25} 26$foo = new Foo(); 27$bar = new Bar(); 28$foo->bar = $bar; 29$bar->foo = $foo; 30unset($foo); 31unset($bar); 32var_dump(gc_collect_cycles()); 33?> 34--EXPECT-- 35int(1) 36