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@ 2014-08-05T15:51:53Z

<?hh // strict
function fibonacci()
{
  $a = 0;
  $b = 1;
  return function() use (&$a, &$b)
  {
    $c = $a;
    $a = $b;
    $b += $c;
    return $c;
  };
}

$fib = fibonacci();
for ($i = 0; $i < 10; $i++) {
  echo $fib(), PHP_EOL;
}

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