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| <?php | |
| function xrange($start, $limit, $step = 1) { | |
| if ($start <= $limit) { | |
| for ($i = $start; $i <= $limit; $i += $step) { | |
| yield $i; | |
| } | |
| } else { | |
| for ($i = $start; $i >= $limit; $i += $step) { | |
| yield $i; | |
| } | |
| } | |
| } | |
| // Source: https://www.php.net/manual/en/language.generators.overview.php |
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