Cómo programar con Yii2: localización con I18n

public function attributeLabels()

{

    return [

      'id' => 'ID',

      'message' => 'Message',

      'permissions' => 'Permissions',

      'created_at' => 'Created At',

      'updated_at' => 'Updated At',        ];

}

public function attributeLabels()

{

    return [

      'id' => Yii::t('app', 'ID'),

      'message' => Yii::t('app', 'Message'),

      'permissions' => Yii::t('app', 'Permissions'),

      'created_at' => Yii::t('app', 'Created At'),

      'updated_at' => Yii::t('app', 'Updated At'),        ];

}

<?php

/**

* Message translations.

*

* This file is automatically generated by 'yii translate' command.

* It contains the localizable messages extracted from source code.

* You may modify this file by translating the extracted messages.

*

* Each array element represents the translation (value) of a message (key).

* If the value is empty, the message is considered as not translated.

* Messages that no longer need translation will have their translations

* enclosed between a pair of '@@' marks.

*

* Message string can be used with plural forms format. Check i18n section

* of the guide for details.

*

* NOTE: this file must be saved in UTF-8 encoding.

*/

return [

    'Get started with Yii' => 'Comience con Yii',

    'Heading' => 'título',

    'My Yii Application' => 'Mi aplicación Yii',

    'Yii Documentation' => 'Yii Documentación',

    'Yii Extensions' => 'Extensiones Yii',

    'Yii Forum' => 'Yii Foro',

    'Are you sure you want to delete this item?' => '¿Seguro que quieres borrar este artículo?',

    'Congratulations!' => '¡Enhorabuena!',

    'Create' => 'crear',

    'Create {modelClass}' => 'crear {modelClass}',

    'Created At' => 'Creado el',

    'Delete' => 'borrar',

    'ID' => 'identificación',

    'Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.' => 'Lorem ipsum dolor sit amet, consectetur adipisicing elit , sed no tempor eiusmod ut labore et dolore incididunt magna aliqua . Ut enim ad minim veniam , nostrud quis ullamco exercitation nisi ut laboris aliquip commodo ex ea consequat . Duis Aute Irure dolor en reprehenderit en voluptate velita esse cillum dolore eu nulla fugiat pariatur .',

    'Message' => 'mensaje',

    'Permissions' => 'Permisos',

    'Reset' => 'reajustar',

    'Search' => 'búsqueda',

    'Statuses' => 'Los estados',

    'Update' => 'actualización',

    'Update {modelClass}: ' => 'actualización {modelClass} :',

    'Updated At' => 'Actualizado A',

    'You have successfully created your Yii-powered application.' => 'Ha creado su aplicación Yii con alimentación.',

];

<?php

return [

    // string, required, root directory of all source files

    'sourcePath' => __DIR__,

    // array, required, list of language codes that the extracted messages

    // should be translated to. For example, ['zh-CN', 'de'].

    'languages' => ['de'],

    // string, the name of the function for translating messages.

    // Defaults to 'Yii::t'. This is used as a mark to find the messages to be

    // translated. You may use a string for single function name or an array for

    // multiple function names.

    'translator' => 'Yii::t',

    // boolean, whether to sort messages by keys when merging new messages

    // with the existing ones. Defaults to false, which means the new (untranslated)

    // messages will be separated from the old (translated) ones.

    'sort' => false,

    // boolean, whether to remove messages that no longer appear in the source code.

    // Defaults to false, which means each of these messages will be enclosed with a pair of '@@' marks.

    'removeUnused' => false,

    // array, list of patterns that specify which files/directories should NOT be processed.

    // If empty or not set, all files/directories will be processed.

    // A path matches a pattern if it contains the pattern string at its end. For example,

    // '/a/b' will match all files and directories ending with '/a/b';

    // the '*.svn' will match all files and directories whose name ends with '.svn'.

    // and the '.svn' will match all files and directories named exactly '.svn'.

    // Note, the '/' characters in a pattern matches both '/' and '\'.

    // See helpers/FileHelper::findFiles() description for more details on pattern matching rules.

    'only' => ['*.php'],

    // array, list of patterns that specify which files (not directories) should be processed.

    // If empty or not set, all files will be processed.

    // Please refer to "except" for details about the patterns.

    // If a file/directory matches both a pattern in "only" and "except", it will NOT be processed.

    'except' => [

        '.svn',

        '.git',

        '.gitignore',

        '.gitkeep',

        '.hgignore',

        '.hgkeep',

        '/messages',

    ],

    // 'php' output format is for saving messages to php files.

    'format' => 'php',

    // Root directory containing message translations.

    'messagePath' => __DIR__ . DIRECTORY_SEPARATOR . 'messages',

    // boolean, whether the message file should be overwritten with the merged messages

    'overwrite' => true,

    /*

    // 'db' output format is for saving messages to database.

    'format' => 'db',

    // Connection component to use. Optional.

    'db' => 'db',

    // Custom source message table. Optional.

    // 'sourceMessageTable' => '{{%source_message}}',

    // Custom name for translation message table. Optional.

    // 'messageTable' => '{{%message}}',

    */

    /*

    // 'po' output format is for saving messages to gettext po files.

    'format' => 'po',

    // Root directory containing message translations.

    'messagePath' => __DIR__ . DIRECTORY_SEPARATOR . 'messages',

    // Name of the file that will be used for translations.

    'catalog' => 'messages',

    // boolean, whether the message file should be overwritten with the merged messages

    'overwrite' => true,

    */

];

<?php

return [

    // string, required, root directory of all source files

    'sourcePath' => __DIR__. DIRECTORY_SEPARATOR .'..',

    // Root directory containing message translations.

    'messagePath' => __DIR__ . DIRECTORY_SEPARATOR .'..'. DIRECTORY_SEPARATOR . 'messages',

    // array, required, list of language codes that the extracted messages

    // should be translated to. For example, ['zh-CN', 'de'].

    'languages' => ['de','es','it','ja'],

    // string, the name of the function for translating messages.

    // Defaults to 'Yii::t'. This is used as a mark to find the messages to be

    // translated. You may use a string for single function name or an array for

    // multiple function names.

    'translator' => 'Yii::t',

<?php

$params = require(__DIR__ . '/params.php');

$config = [

    'id' => 'basic',

    'basePath' => dirname(__DIR__),

    'bootstrap' => ['log'],

    'language'=>'es', // spanish

    'components' => [

<?php

use yii\helpers\Html;

use yii\grid\GridView;

/* @var $this yii\web\View */

/* @var $searchModel app\models\StatusSearch */

/* @var $dataProvider yii\data\ActiveDataProvider */

$this->title = Yii::t('app', 'Statuses');

$this->params['breadcrumbs'][] = $this->title;

?>

<div class="status-index">

    <h1><?= Html::encode($this->title) ?></h1>

    <?php // echo $this->render('_search', ['model' => $searchModel]); ?>

    <p>

        <?= Html::a(Yii::t('app', 'Create {modelClass}', [

    'modelClass' => 'Status',

]), ['create'], ['class' => 'btn btn-success']) ?>

    </p>

    <?= GridView::widget([

        'dataProvider' => $dataProvider,

        'filterModel' => $searchModel,

        'columns' => [

            ['class' => 'yii\grid\SerialColumn'],

            'id',

            'message:ntext',

            'permissions',

            'created_at',

            'updated_at',

            ['class' => 'yii\grid\ActionColumn'],

        ],

    ]); ?>

</div>

NavBar::begin([

                'brandLabel' => 'My Company',

                'brandUrl' => Yii::$app->homeUrl,

                'options' => [

                    'class' => 'navbar-inverse navbar-fixed-top',

                ],

            ]);

            $navItems=[

                ['label' => 'Home', 'url' => ['/site/index']],

                ['label' => 'Status', 'url' => ['/status/index']],

                ['label' => 'About', 'url' => ['/site/about']],

                ['label' => 'Contact', 'url' => ['/site/contact']]

              ];

              if (Yii::$app->user->isGuest) {

                array_push($navItems,['label' => 'Sign In', 'url' => ['/user/login']],['label' => 'Sign Up', 'url' => ['/user/register']]);

              } else {

                array_push($navItems,['label' => 'Logout (' . Yii::$app->user->identity->username . ')',

                    'url' => ['/site/logout'],

                    'linkOptions' => ['data-method' => 'post']]

                );

              }

            echo Nav::widget([

                'options' => ['class' => 'navbar-nav navbar-right'],

                'items' => $navItems,

            ]);

            NavBar::end();

NavBar::begin([

    'brandLabel' => Yii::t('app', 'My Company'),

    'brandUrl' => Yii::$app->homeUrl,

    'options' => [

        'class' => 'navbar-inverse navbar-fixed-top',

    ],

]);

$navItems=[

    ['label' =>  Yii::t('app', 'Home'), 'url' => ['/site/index']],

    ['label' => Yii::t('app','Status'), 'url' => ['/status/index']],

    ['label' => Yii::t('app','About'), 'url' => ['/site/about']],

    ['label' => Yii::t('app','Contact'), 'url' => ['/site/contact']]

  ];

  if (Yii::$app->user->isGuest) {

    array_push($navItems,['label' => Yii::t('app','Sign In'), 'url' => ['/user/login']],['label' => Yii::t('app','Sign Up'), 'url' => ['/user/register']]);

  } else {

    array_push($navItems,['label' => Yii::t('app','Logout').' (' . Yii::$app->user->identity->username . ')',

        'url' => ['/site/logout'],

        'linkOptions' => ['data-method' => 'post']]

    );

  }

echo Nav::widget([

    'options' => ['class' => 'navbar-nav navbar-right'],

    'items' => $navItems,

]);

NavBar::end();

<div class="jumbotron">

        <h1><?= Yii::t('app','Congratulations!'); ?></h1>

        <p class="lead"><?= Yii::t('app','You have successfully created your Yii-powered application.'); ?></p>

        <p><a class="btn btn-lg btn-success" href="http://www.yiiframework.com"><?= Yii::t('app','Get started with Yii'); ?></a></p>

    </div>

    <div class="body-content">

        <div class="row">

            <div class="col-lg-4">

                <h2><?= Yii::t('app','Heading'); ?></h2>

                <p><?= Yii::t('app','Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.'); ?></p>

                <p><a class="btn btn-default" href="http://www.yiiframework.com/doc/"><?= Yii::t('app','Yii Documentation') ?> &raquo;</a></p>

            </div>

return [

    'About' => '',

    'Contact' => '',

    'Home' => '',

    'Logout' => '',

    'My Company' => '',

    'Sign In' => '',

    'Sign Up' => '',

    'Status' => '',

    ...

return [

    'About' => 'Acerca de',

    'Contact' => 'Contacto',

    'Home' => 'Home',

    'Logout' => 'Salir',

    'My Company' => 'Mi Empresa',

    'Sign In' => 'Entrar',

    'Sign Up' => 'Registrarse',

    'Status' => 'Estado',

<?php

$params = require(__DIR__ . '/params.php');

$config = [

    'id' => 'basic',

    'basePath' => dirname(__DIR__),

    'bootstrap' => ['log'],

    'language'=>'en', // back to English

    'components' => [