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<?php function xrange($from, $till, $step) { if ($from>$till || $step<=0) { throw new InvalidArgumentException('Invalid range initializers'); } for ($i = $from; $i < $till; $i += $step) { yield $i; } } //... foreach (xrange(2, 13, 3) as $i) { echo($i.PHP_EOL); // 2,5,8,11 }
Output for git.master, git.master_jit, rfc.property-hooks
2 5 8 11

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