How can the issue of incorrect output when switching languages in a CMS be resolved using PHP functions or methods?

When switching languages in a CMS, the issue of incorrect output can be resolved by using PHP functions or methods to properly handle language translations and formatting. One way to solve this is by using the `gettext()` function in PHP, which allows for the retrieval of translated strings based on the current language setting.

// Set the desired language
$language = 'fr_FR';

// Specify the directory where language files are stored
$directory = '/path/to/language/files';

// Set the text domain and bind it to the specified directory
bindtextdomain('messages', $directory);
textdomain('messages');
bind_textdomain_codeset('messages', 'UTF-8');

// Retrieve the translated string based on the current language setting
echo gettext('Hello, world!');