In the context of PHP development, what are the advantages and disadvantages of using gettext() for multilingual content compared to other methods like arrays or constants?

Using gettext() for multilingual content in PHP development has the advantage of providing a standardized and efficient solution for handling translations. It allows for easy management of language files and supports plural forms and context-based translations. However, gettext() can be more complex to set up compared to using arrays or constants for translations.

// Set the locale
$locale = 'fr_FR';
putenv("LC_ALL=$locale");
setlocale(LC_ALL, $locale);

// Specify the location of language files
bindtextdomain('messages', 'path/to/language/files');
bind_textdomain_codeset('messages', 'UTF-8');

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

// Translate a string
echo gettext('Hello, world!');