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<?php function nums() { for ($i = 0; $i < 5; ++$i) { //get a value from the caller $cmd = (yield $i); var_dump($cmd); if($cmd == 'stop') { return;//exit the function } } } $gen = nums(); foreach($gen as $v) { if($v == 3) { $send = $gen->send('stop'); } if (isset($send)) var_dump($send); echo "{$v}\n"; }
Output for git.master, git.master_jit, rfc.property-hooks
0 NULL 1 NULL 2 NULL string(4) "stop" 3

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