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<?php function foo() { echo 'In generator func foo',"\n"; $string = (yield); if ($string == 'Hello world!') { echo $string; } var_dump($string); for ($i = 1; $i <= 3; $i++) { yield $i; } echo 'generator done and closed.',"\n"; return; } $generator = foo(); $generator->send('Hello world!'); foreach ($generator as $value) echo "$value\n";
Output for git.master, git.master_jit, rfc.property-hooks
In generator func foo Hello world!string(12) "Hello world!" Fatal error: Uncaught Exception: Cannot rewind a generator that was already run in /in/N0Ba0:17 Stack trace: #0 {main} thrown in /in/N0Ba0 on line 17
Process exited with code 255.

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