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October 7, 2011 00:41
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array_map() と ArrayIterator で FizzBuzz
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| <?php | |
| namespace Holy\Example; | |
| require_once realpath(__DIR__ . '/lime.php'); | |
| class Util | |
| { | |
| public static function H($data, $callback=null) | |
| { | |
| if (isset($data) && strcmp($data, '') != 0) { | |
| if (isset($callback)) { | |
| $data = call_user_func($callback, $data); | |
| } | |
| $data = htmlspecialchars($data, ENT_QUOTES, 'UTF-8'); | |
| } | |
| return $data; | |
| } | |
| } | |
| class FizzBuzz | |
| { | |
| public static function execute($var) | |
| { | |
| return ($var % 3 * $var % 5) ? sprintf('%d', $var) | |
| : ($var % 3 ? '' : 'Fizz') . ($var % 5 ? '' : 'Buzz'); | |
| } | |
| } | |
| $source = highlight_file(__FILE__, true); | |
| $title = 'array_map() と ArrayIterator で FizzBuzz'; | |
| use Holy\Example\Util as U; | |
| ?> | |
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="UTF-8" /> | |
| <title><?=U::H($title)?></title> | |
| <style type="text/css"> | |
| body {font-family:monospace;} | |
| </style> | |
| </head> | |
| <body> | |
| <h1><?=U::H($title)?></h1> | |
| <pre> | |
| <?php | |
| // Test case | |
| $t = new \lime_test(); | |
| $t->is('1', FizzBuzz::execute(1)); | |
| $t->is('Fizz', FizzBuzz::execute(3)); | |
| $t->is('Fizz', FizzBuzz::execute(6)); | |
| $t->is('Buzz', FizzBuzz::execute(5)); | |
| $t->is('Buzz', FizzBuzz::execute(10)); | |
| $t->is('FizzBuzz', FizzBuzz::execute(15)); | |
| $t->is('FizzBuzz', FizzBuzz::execute(30)); | |
| ?> | |
| </pre> | |
| <ol> | |
| <?php | |
| // array_map() | |
| echo implode("\n", array_map(function($var) { | |
| return sprintf('<li>%s</li>', call_user_func(array('\Holy\Example\FizzBuzz', 'execute'), $var)); | |
| }, range(1, 100))); | |
| ?> | |
| </ol> | |
| <hr /> | |
| <?php | |
| // ArrayIterator | |
| class FizzBuzzIterator extends \ArrayIterator | |
| { | |
| public function __construct($start, $end) | |
| { | |
| parent::__construct(range($start, $end)); | |
| } | |
| public function current() | |
| { | |
| return FizzBuzz::execute(parent::current()); | |
| } | |
| } | |
| $iterator = new FizzBuzzIterator(1, 100); | |
| ?> | |
| <ol> | |
| <?php foreach ($iterator as $i) : ?> | |
| <li><?=$i?></li> | |
| <?php endforeach ?> | |
| </ol> | |
| <?=$source?> | |
| </body> | |
| </html> |
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lime初めて使ってみたけど、こういうサンプルコードにぴったりな気がする。
html終了タグの後に"# Looks like everything went fine. "とか出るのはご愛嬌