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<?php function gen() { $ret = (yield 'yield1'); var_dump($ret); $ret = (yield 'yield2'); var_dump($ret); } $gen = gen(); var_dump($gen->current()); // string(6) "yield1" var_dump($gen->send('ret1')); // string(4) "ret1" (the first var_dump in gen) // string(6) "yield2" (the var_dump of the ->send() return value) var_dump($gen->send('ret2')); // string(4) "ret2" (again from within gen) // NULL (the return value of ->send())
Output for git.master, git.master_jit, rfc.property-hooks
string(6) "yield1" string(4) "ret1" string(6) "yield2" string(4) "ret2" NULL

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