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<?php function generate_ints($n){ foreach ( range(0,$n) as $number) { $number = (yield $number); yield $number; } } $gen = generate_ints(5); // iterable object can be used in foreach foreach ($gen as $g) { // $g == $gen->current() echo $g; if ($gen->current() == 4) { $gen->send("\n999\n"); // injecting a value echo $gen->current(); } }

preferences:
39.64 ms | 402 KiB | 5 Q