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run code in 200+ php & hhvm versions
Bugs & Features
<?php $foo = function () { var_dump('foo'); yield 1; yield 2; yield 3; }; $iterator = new CachingIterator($foo()); foreach ($iterator as $value) { var_dump($value); } foreach ($iterator as $value) { var_dump($value); }
Output for 7.0.0 - 7.1.8
string(3) "foo" int(1) int(2) int(3) Fatal error: Uncaught Exception: Cannot rewind a generator that was already run in /in/dgAFs:16 Stack trace: #0 /in/dgAFs(16): CachingIterator->rewind() #1 {main} thrown in /in/dgAFs on line 16
Process exited with code 255.
Output for hhvm-3.18.4 - 3.21.0
string(3) "foo" int(1) int(2) int(3)
Output for 5.6.0 - 5.6.30
string(3) "foo" int(1) int(2) int(3) Fatal error: Uncaught exception 'Exception' with message 'Cannot rewind a generator that was already run' in /in/dgAFs:16 Stack trace: #0 /in/dgAFs(16): CachingIterator->rewind() #1 {main} thrown in /in/dgAFs on line 16
Process exited with code 255.