<?php class A { public function __destruct() { } } gc_disable(); $a1 = new A; $a2 = new A; $a1->ref = $a2; $a2->ref = $a1; $a1 = $a2 = NULL; echo 'removed cycles: '.gc_collect_cycles()."\n"; echo 'removed cycles: '.gc_collect_cycles()."\n";
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