1--TEST-- 2GC 035: Lost inner-cycles garbage 3--INI-- 4zend.enable_gc = 1 5--FILE-- 6<?php 7class A { 8 public $a; 9 public $x; 10 function __destruct() { 11 unset($this->x); 12 } 13} 14$a = new A; 15$a->a = $a; 16$a->x = []; 17$a->x[] =& $a->x; 18$a->x[] = $a; 19var_dump(gc_collect_cycles()); 20unset($a); 21var_dump(gc_collect_cycles()); 22var_dump(gc_collect_cycles()); 23--EXPECT-- 24int(0) 25int(0) 26int(2) 27