| --TEST-- | |
| Generators cannot be cloned | |
| --FILE-- | |
| function gen() { | |
| yield; | |
| } | |
| try { | |
| $gen = gen(); | |
| clone $gen; | |
| } catch (Throwable $e) { | |
| echo $e::class, ": ", $e->getMessage(), PHP_EOL; | |
| } | |
| --EXPECT-- | |
| Error: Trying to clone an uncloneable object of class Generator | |