XHPとは、 Today, I'd like to take to this opportunity to share with you a project that's quickly becoming a cornerstone of front-end PHP development at Facebook. XHP is a PHP extension which augments the syntax of the language to both make your front-end code easier to understand and help you avoid cross-site scripting attacks. XHP: A New Way to Write PHP | Facebook ということで、フロントエンドのコードを書きやすく理解しやすいものにし