The restore_current_locale() WordPress PHP function restores the translations according to the original locale.
Usage
To use the function, simply call it in your code like this:
restore_current_locale();
Parameters
There are no parameters for this function.
More information
See WordPress Developer Resources: restore_current_locale()
Examples
Temporarily change the locale and restore it
Restore the original locale after temporarily changing it for a specific task.
// Temporarily change the locale to French
switch_to_locale('fr_FR');
// Execute your task here (e.g., display a French message)
// Restore the original locale
restore_current_locale();
Display a translated string in a different language and then restore the original locale
// Save the current locale
$original_locale = get_locale();
// Temporarily switch to Spanish locale
switch_to_locale('es_ES');
// Display a translated string in Spanish
_e('Hello, World!', 'textdomain');
// Restore the original locale
restore_current_locale();
Translate a string in multiple languages
// Save the current locale
$original_locale = get_locale();
// Translate and display string in German
switch_to_locale('de_DE');
_e('Welcome to our website!', 'textdomain');
// Translate and display string in Italian
switch_to_locale('it_IT');
_e('Welcome to our website!', 'textdomain');
// Restore the original locale
restore_current_locale();
Send an email notification in the user’s language
// Get the user's preferred language
$user_locale = get_user_locale($user_id);
// Save the current locale
$original_locale = get_locale();
// Switch to the user's locale
switch_to_locale($user_locale);
// Set email content with translated strings
$subject = __('New Notification', 'textdomain');
$message = __('You have a new message.', 'textdomain');
// Send email
wp_mail($user_email, $subject, $message);
// Restore the original locale
restore_current_locale();
Display a translated date format in a different locale
// Save the current locale
$original_locale = get_locale();
// Temporarily switch to Japanese locale
switch_to_locale('ja');
// Display a translated date format in Japanese
$date_format = __('F j, Y', 'textdomain');
echo date_i18n($date_format, time());
// Restore the original locale
restore_current_locale();