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<?php function gen_one_to_three() { for ($i = 1; $i <= 3; $i++) { yield $i; } } $generator = gen_one_to_three(); var_dump($generator->valid()); foreach ($generator as $value) { echo "$value\n"; } var_dump($generator->valid()); foreach ($generator as $value) { echo "$value\n"; }
Output for git.master, git.master_jit, rfc.property-hooks
bool(true) 1 2 3 bool(false) Fatal error: Uncaught Exception: Cannot traverse an already closed generator in /in/cfWLt:15 Stack trace: #0 {main} thrown in /in/cfWLt on line 15
Process exited with code 255.

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