What are the potential challenges of implementing internationalization with gettext in a PHP application running on IIS?

One potential challenge of implementing internationalization with gettext in a PHP application running on IIS is ensuring that the appropriate language files are loaded and utilized correctly. This may involve setting the correct locale and file paths to the language files. Additionally, there may be issues with file permissions or server configurations that could affect the functionality of gettext.

// Set the locale
$locale = 'en_US';
setlocale(LC_ALL, $locale);

// Specify the directory where language files are located
$directory = 'C:/path/to/language/files';

// Bind the domain to the directory
bindtextdomain('messages', $directory);

// Specify the domain
textdomain('messages');