PHP
$is_file = is_file('/path/to/foobar'); var_export($is_file); //=> true
Ruby
is_file = File.file?('/path/to/foobar') p is_file #=> true
Looking for Rails or PHP web application development, integration, and training?
Rails for PHP is brought to you by Maintainable Software. Get custom web applications and personalized training from the authors of the book and website.
Rails for PHP Developers
(Available in Paper or PDF)
Are you a PHP developer interested in the Ruby on Rails framework? Rails for PHP Developers kick-starts your Rails experience by guiding you through learning both Ruby and Rails from a PHP developer’s perspective. Written by developers with deep experience using PHP, Ruby, and Rails, this book leverages your existing knowledge of PHP to learn Rails application development quickly and effectively.
Published by The Pragmatic Programmers: Buy It Code Errata Discussion