1--TEST-- 2GC 022: GC detach reference in executor's PZVAL_UNLOCK() 3--INI-- 4error_reporting=0 5zend.enable_gc=1 6--FILE-- 7<?php 8$a = array(array()); 9$a[0][0] =& $a[0]; 10$s = array(1) + unserialize(serialize(&$a[0])); 11var_dump(gc_collect_cycles()); 12echo "ok\n" 13?> 14--EXPECT-- 15int(1) 16ok 17