Class I18n
I18n handles translation of Text and time format strings.
Constants
-
string
DEFAULT_LOCALE ¶'en_US'
Default locale
Property Summary
-
$_collection protected static
Cake\I18n\TranslatorRegistry|null
The translators collection
-
$_defaultLocale protected static
string
The environment default locale
Method Summary
-
clear() public static
Destroys all translator instances and creates a new empty translations collection.
-
config() public static
Registers a callable object that can be used for creating new translator instances for the same translations domain. Loaders will be invoked whenever a translator object is requested for a domain that has not been configured or loaded already.
-
defaultFormatter() public static deprecated
Sets the name of the default messages formatter to use for future translator instances.
-
defaultLocale() public static deprecated
This returns the default locale before any modifications, i.e. the value as stored in the
intl.default_locale
PHP setting before any manipulation by this class. -
getDefaultFormatter() public static
Returns the currently configured default formatter.
-
getDefaultLocale() public static
Returns the default locale.
-
getLocale() public static
Will return the currently configure locale as stored in the
intl.default_locale
PHP setting. -
getTranslator() public static
Returns an instance of a translator that was configured for the name and locale.
-
locale() public static deprecated
Sets the default locale to use for future translator instances. This also affects the
intl.default_locale
PHP setting. -
setDefaultFormatter() public static
Sets the name of the default messages formatter to use for future translator instances. By default the
default
andsprintf
formatters are available. -
setLocale() public static
Sets the default locale to use for future translator instances. This also affects the
intl.default_locale
PHP setting. -
setTranslator() public static
Sets a translator.
-
translator() public static deprecated
Returns an instance of a translator that was configured for the name and passed locale. If no locale is passed then it takes the value returned by the
getLocale()
method. -
translators() public static
Returns the translators collection instance. It can be used for getting specific translators based of their name and locale or to configure some aspect of future translations that are not yet constructed.
-
useFallback() public static
Set if the domain fallback is used.
Method Detail
clear() ¶ public static
clear(): void
Destroys all translator instances and creates a new empty translations collection.
Returns
void
config() ¶ public static
config(string $name, callable $loader): void
Registers a callable object that can be used for creating new translator instances for the same translations domain. Loaders will be invoked whenever a translator object is requested for a domain that has not been configured or loaded already.
Registering loaders is useful when you need to lazily use translations in multiple
different locales for the same domain, and don't want to use the built-in
translation service based of gettext
files.
Loader objects will receive two arguments: The domain name that needs to be
built, and the locale that is requested. These objects can assemble the messages
from any source, but must return an Aura\Intl\Package
object.
Example:
use Cake\I18n\MessagesFileLoader;
I18n::config('my_domain', function ($name, $locale) {
// Load src/Locale/$locale/filename.po
$fileLoader = new MessagesFileLoader('filename', $locale, 'po');
return $fileLoader();
});
You can also assemble the package object yourself:
use Aura\Intl\Package;
I18n::config('my_domain', function ($name, $locale) {
$package = new Package('default');
$messages = (...); // Fetch messages for locale from external service.
$package->setMessages($message);
$package->setFallback('default');
return $package;
});
Parameters
-
string
$name The name of the translator to create a loader for
-
callable
$loader A callable object that should return a Package instance to be used for assembling a new translator.
Returns
void
defaultFormatter() ¶ public static
defaultFormatter(string|null $name = null): string
Sets the name of the default messages formatter to use for future translator instances.
By default the default
and sprintf
formatters are available.
If called with no arguments, it will return the currently configured value.
Parameters
-
string|null
$name optional The name of the formatter to use.
Returns
string
defaultLocale() ¶ public static
defaultLocale(): string
This returns the default locale before any modifications, i.e.
the value as stored in the intl.default_locale
PHP setting before
any manipulation by this class.
Returns
string
getDefaultFormatter() ¶ public static
getDefaultFormatter(): string
Returns the currently configured default formatter.
Returns
string
getDefaultLocale() ¶ public static
getDefaultLocale(): string
Returns the default locale.
This returns the default locale before any modifications, i.e.
the value as stored in the intl.default_locale
PHP setting before
any manipulation by this class.
Returns
string
getLocale() ¶ public static
getLocale(): string
Will return the currently configure locale as stored in the
intl.default_locale
PHP setting.
Returns
string
getTranslator() ¶ public static
getTranslator(string $name = 'default', string|null $locale = null): Aura\Intl\TranslatorInterface
Returns an instance of a translator that was configured for the name and locale.
If no locale is passed then it takes the value returned by the getLocale()
method.
Parameters
-
string
$name optional The domain of the translation messages.
-
string|null
$locale optional The locale for the translator.
Returns
Aura\Intl\TranslatorInterface
Throws
Aura\Intl\Exception
locale() ¶ public static
locale(string|null $locale = null): string|null
Sets the default locale to use for future translator instances.
This also affects the intl.default_locale
PHP setting.
When called with no arguments it will return the currently configure
locale as stored in the intl.default_locale
PHP setting.
Parameters
-
string|null
$locale optional The name of the locale to set as default.
Returns
string|null
setDefaultFormatter() ¶ public static
setDefaultFormatter(string $name): void
Sets the name of the default messages formatter to use for future
translator instances. By default the default
and sprintf
formatters
are available.
Parameters
-
string
$name The name of the formatter to use.
Returns
void
setLocale() ¶ public static
setLocale(string $locale): void
Sets the default locale to use for future translator instances.
This also affects the intl.default_locale
PHP setting.
Parameters
-
string
$locale The name of the locale to set as default.
Returns
void
setTranslator() ¶ public static
setTranslator(string $name, callable $loader, string|null $locale = null): void
Sets a translator.
Configures future translators, this is achieved by passing a callable as the last argument of this function.
Example:
I18n::setTranslator('default', function () {
$package = new \Aura\Intl\Package();
$package->setMessages([
'Cake' => 'Gâteau'
]);
return $package;
}, 'fr_FR');
$translator = I18n::getTranslator('default', 'fr_FR');
echo $translator->translate('Cake');
You can also use the Cake\I18n\MessagesFileLoader
class to load a specific
file from a folder. For example for loading a my_translations.po
file from
the src/Locale/custom
folder, you would do:
I18n::setTranslator(
'default',
new MessagesFileLoader('my_translations', 'custom', 'po'),
'fr_FR'
);
Parameters
-
string
$name The domain of the translation messages.
-
callable
$loader A callback function or callable class responsible for constructing a translations package instance.
-
string|null
$locale optional The locale for the translator.
Returns
void
translator() ¶ public static
translator(string $name = 'default', string|null $locale = null, callable|null $loader = null): Aura\Intl\TranslatorInterface|null
Returns an instance of a translator that was configured for the name and passed
locale. If no locale is passed then it takes the value returned by the getLocale()
method.
This method can be used to configure future translators, this is achieved by passing a callable as the last argument of this function.
Example:
I18n::setTranslator('default', function () {
$package = new \Aura\Intl\Package();
$package->setMessages([
'Cake' => 'Gâteau'
]);
return $package;
}, 'fr_FR');
$translator = I18n::translator('default', 'fr_FR');
echo $translator->translate('Cake');
You can also use the Cake\I18n\MessagesFileLoader
class to load a specific
file from a folder. For example for loading a my_translations.po
file from
the src/Locale/custom
folder, you would do:
I18n::translator(
'default',
'fr_FR',
new MessagesFileLoader('my_translations', 'custom', 'po');
);
Parameters
-
string
$name optional The domain of the translation messages.
-
string|null
$locale optional The locale for the translator.
-
callable|null
$loader optional A callback function or callable class responsible for constructing a translations package instance.
Returns
Aura\Intl\TranslatorInterface|null
Throws
Aura\Intl\Exception
translators() ¶ public static
translators(): Cake\I18n\TranslatorRegistry
Returns the translators collection instance. It can be used for getting specific translators based of their name and locale or to configure some aspect of future translations that are not yet constructed.
Returns
Cake\I18n\TranslatorRegistry
useFallback() ¶ public static
useFallback(bool $enable = true): void
Set if the domain fallback is used.
Parameters
-
bool
$enable optional flag to enable or disable fallback
Returns
void