<?php function a () { print_r('I was here'); yield 1; yield 2; yield 3; } function b (iterable $i, string $name) { print_r($name); foreach($i as $it) { print_r($it); } print_r(PHP_EOL); print_r(PHP_EOL); } $it = a(); b((array) [1, 2, 3], '[1, 2, 3]'); b((array) 1, '1'); b((array) $it, 'a()'); print_r(array_map(fn ($message) => 'a', (array) $it));
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