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Class I18n

I18n handles translation of Text and time format strings.

Namespace: Cake\I18n

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 and sprintf 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

Property Detail

$_collection ¶ protected static

The translators collection

Type
Cake\I18n\TranslatorRegistry|null

$_defaultLocale ¶ protected static

The environment default locale

Type
string
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