<?php function gen() { echo "1\n"; $ret = (yield 'yield1'); echo "2\n"; var_dump($ret); echo "3\n"; $ret = (yield 'yield2'); echo "4\n"; var_dump($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())
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