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<?php function ping_pong() { for ($i = 1; $i <= 10; $i++) { $val = (yield $i); var_dump($val); echo 'ping: ' . $val . PHP_EOL; } } $generator = ping_pong(); foreach ($generator as $value) { echo 'pong: ' . $generator->send($value) . PHP_EOL; }
Output for git.master, git.master_jit, rfc.property-hooks
int(1) ping: 1 pong: 2 NULL ping: int(3) ping: 3 pong: 4 NULL ping: int(5) ping: 5 pong: 6 NULL ping: int(7) ping: 7 pong: 8 NULL ping: int(9) ping: 9 pong: 10 NULL ping:

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