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Internationalization


Overview

Phalcon is written in C as an extension for PHP. There is a PECL extension that offers internationalization functions to PHP applications called intl. Its documentation can be found in the pages of the official PHP manual.

Phalcon does not offer this functionality, since creating such a component would be replicating existing code.

In the examples below, we will show you how to implement the intl extension’s functionality into Phalcon powered applications.

This guide is not intended to be a complete documentation of the intl extension. Please visit its the documentation of the extension for a reference.

Find out best available Locale

There are several ways to find out the best available locale using intl. One of them is to check the HTTP Accept-Language header:

<?php

$locale = Locale::acceptFromHttp($_SERVER['HTTP_ACCEPT_LANGUAGE']);

// La configuración Locale puede ser algo como 'en_GB' o 'en'
echo $locale;

Below method returns a locale identified. It is used to get language, culture, or regionally-specific behavior from the Locale API.

Examples of identifiers include:

  • en-US (Inglés, Estados Unidos)
  • ru-RU (Ruso, Rusia)
  • zh-Hant-TW (Chino, escritura tradicional, Taiwán)
  • fr-CA, fr-FR (Francés para Canadá y Francia respectivamente)

Formatting messages based on Locale

Part of creating a localized application is to produce concatenated, language-neutral messages. The MessageFormatter allows for the production of those messages.

Printing numbers formatted based on some locale:

<?php

// Visualiza € 4 560
$formatter = new MessageFormatter('fr_FR', '€ {0, number, integer}');
echo $formatter->format([4560]);

// Visualiza USD$ 4,560.5
$formatter = new MessageFormatter('en_US', 'USD$ {0, number}');
echo $formatter->format([4560.50]);

// Visualiza ARS$ 1.250,25
$formatter = new MessageFormatter('es_AR', 'ARS$ {0, number}');
echo $formatter->format([1250.25]);

Message formatting using time and date patterns:

<?php

// Configurar parámetros
$time   = time();
$values = [7, $time, $time];

// Visualiza 'At 3:50:31 PM on Apr 19, 2015, there was a disturbance on planet 7.'
$pattern   = 'At {1, time} on {1, date}, there was a disturbance on planet {0, number}.';
$formatter = new MessageFormatter('en_US', $pattern);
echo $formatter->format($values);

// Muestra 'À 15:53:01 le 19 avr. 2015, il y avait une perturbation sur la planète 7.'
$pattern   = 'À {1, time} le {1, date}, il y avait une perturbation sur la planète {0, number}.';
$formatter = new MessageFormatter('fr_FR', $pattern);
echo $formatter->format($values);

Locale-Sensitive comparison

The Collator class provides string comparison capability with support for appropriate locale-sensitive sort orderings. Check the examples below on the usage of this class:

<?php

// Crear un Collator utilizando la localización en Español
$collator = new Collator('es');

// Retorna que los strings son iguales, a pesar del acento en la 'o'
$collator->setStrength(Collator::PRIMARY);
var_dump($collator->compare('una canción', 'una cancion'));

// Retorna que los strings no son iguales
$collator->setStrength(Collator::DEFAULT_VALUE);
var_dump($collator->compare('una canción', 'una cancion'));

Transliteration

Transliterator provides transliteration of strings:

<?php

$id = 'Any-Latin; NFD; [:Nonspacing Mark:] Remove; NFC; [:Punctuation:] Remove; Lower();';
$transliterator = Transliterator::create($id);

$string = "garçon-étudiant-où-L'école";
echo $transliterator->transliterate($string); // garconetudiantoulecole