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--TEST-- GC 015: Object as root of cycle --INI-- zend.enable_gc=1 --FILE-- <?php $a = new stdClass(); $c =& $a; $b = $a; $a->a = $a; $a->b = "xxx"; unset($c); unset($a); unset($b); var_dump(gc_collect_cycles() > 0); echo "ok\n"; ?> --EXPECT-- bool(true) ok