1--TEST-- 2GH-13827 (Null pointer access of type 'zval' in phpdbg_frame) 3--FILE-- 4<?php 5 6$fiber = new Fiber(function () { 7 $fiber = Fiber::getCurrent(); 8 9 Fiber::suspend(); 10}); 11 12$fiber->start(); 13 14$fiber = null; 15gc_collect_cycles(); 16 17?> 18--PHPDBG-- 19r 20t 21q 22--EXPECTF-- 23[Successful compilation of %s] 24prompt> [Uncaught GracefulExit in on line 0: ] 25>00006: Fiber::suspend(); 26 00007: }); 27 00008: 28prompt> frame #0: {closure:%s:%d}() at %s:6 29 => {closure:%s:%d} (internal function) 30prompt> 31