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<?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; }
Output for git.master, git.master_jit, rfc.property-hooks
<?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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