/usr/share/php/kohana3.1/system/guide/kohana/files/i18n.md is in libkohana3.1-core-php 3.1.4-2.
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Kohana has a fairly simple and easy to use i18n system. It is slightly modeled after gettext, but is not as featureful. If you need the features of gettext, please use that :)
## __()
Kohana has a __() function to do your translations for you. This function is only meant for small sections of text, not entire paragraphs or pages of translated text.
To echo a translated string:
<?php echo __('Hello, world!');?>
This will echo 'Home' unless you've changed the defined language, which is explained below.
## Changing the displayed language
Use the I18n::lang() method to change the displayed language:
I18n::lang('fr');
This will change the language to 'es-es'.
## Defining language files
To define the language file for the above language change, create a `i18n/fr.php` that contains:
<?php
return array
(
'Hello, world!' => 'Bonjour, monde!',
);
Now when you do `__('Hello, world!')`, you will get `Bonjour, monde!`
## I18n variables
You can define variables in your __() calls like so:
echo __('Hello, :user', array(':user' => $username));
Your i18n key in your translation file will need to be defined as:
<?php
return array
(
'Hello, :user' => 'Bonjour, :user',
);
## Defining your own __() function
You can define your own __() function by simply defining your own i18n class:
<?php
class I18n extends Kohana_I18n
{
// Intentionally empty
}
function __($string, array $values = NULL, $lang = 'en-us')
{
// Your functionality here
}
This will cause the built-in __() function to be ignored.
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