An example of language file loading and use in the FuelPHP framework. Source: http://fuelphp.com/dev-docs/classes/lang.html

fuelPHP_example.php

<?php
  // source: http://fuelphp.com/dev-docs/classes/lang.html

  // Example of a language file:
  return array(
    'hello' => 'Hello :name',
    'something'=> 'something :name!',
    'test'=> array('hello' => 'Hello', 'something' => 'Plop') // Group
  );

  // Loads example.php.
  // Note: If no language is set in the config, it will fallback to English.
  Lang::load('example');

  // Will load the given file into the 'test' group.
  Lang::load('example', 'test');

  // Outputs Plop
  $this->output = Lang::get('test.test.something');

  //Outputs Hello world
  $this->output = Lang::get('hello', array('name' => 'world'));

  // Will load the example language file from the module 'foo' into the 'bar' group.
  Lang::load('foo::example', 'bar');

  // Will load the example language file in italian.
  // If that doesn't exist, it will load the configured language
  Lang::load('foo::example', 'bar', 'it');

?>