PHP Notice – yii\base\ErrorException

Undefined variable: sort
1. in /var/www/affbank.com/frontend/views/cpa-networks/index.php at line 34
25262728293031323334353637383940414243    <div class="for_sort_block result_block">
        <div class="content">
            <div class="label"><?= Yii::t('common', 'Sort by') ?>:</div>

            <div class="items">
                <ul>
                    <?php foreach ($dataProvider->sort->attributes as $name => $value): ?>
                        <li>
                            <noindex>
                                <?= $sort->link($name, [
                                    'rel' => 'nofollow'
                                ]); ?>
                            </noindex>
                        </li>
                    <?php endforeach; ?>
                </ul>
            </div>
        </div>
    </div>
2. in /var/www/affbank.com/frontend/views/cpa-networks/index.php at line 34 – yii\base\ErrorHandler::handleError(8, 'Undefined variable: sort', '/var/www/affbank.com/frontend/vi...', 34, ...)
28293031323334353637383940
            <div class="items">
                <ul>
                    <?php foreach ($dataProvider->sort->attributes as $name => $value): ?>
                        <li>
                            <noindex>
                                <?= $sort->link($name, [
                                    'rel' => 'nofollow'
                                ]); ?>
                            </noindex>
                        </li>
                    <?php endforeach; ?>
                </ul>
3. in /var/www/affbank.com/vendor/yiisoft/yii2/base/View.php at line 328 – require('/var/www/affbank.com/frontend/vi...')
4. in /var/www/affbank.com/vendor/yiisoft/yii2/base/View.php at line 250 – yii\base\View::renderPhpFile('/var/www/affbank.com/frontend/vi...', ['dataProvider' => yii\data\ActiveDataProvider, 'searchModel' => frontend\models\NetworkSearch, 'isEmpty' => false])
5. in /var/www/affbank.com/vendor/yiisoft/yii2/base/View.php at line 152 – yii\base\View::renderFile('/var/www/affbank.com/frontend/vi...', ['dataProvider' => yii\data\ActiveDataProvider, 'searchModel' => frontend\models\NetworkSearch, 'isEmpty' => false], frontend\controllers\CpaNetworksController)
6. in /var/www/affbank.com/vendor/yiisoft/yii2/base/Controller.php at line 381 – yii\base\View::render('index', ['dataProvider' => yii\data\ActiveDataProvider, 'searchModel' => frontend\models\NetworkSearch, 'isEmpty' => false], frontend\controllers\CpaNetworksController)
7. in /var/www/affbank.com/frontend/controllers/CpaNetworksController.php at line 80 – yii\base\Controller::render('index', ['dataProvider' => yii\data\ActiveDataProvider, 'searchModel' => frontend\models\NetworkSearch, 'isEmpty' => false])
74757677787980818283848586            $dataProvider->getModels();
        }

        return $this->render('index', [
            'dataProvider' => $dataProvider,
            'searchModel' => $searchModel,
            'isEmpty' => $isEmpty
        ]);
    }

    /**
     * @param null $alias
     * @return string
8. frontend\controllers\CpaNetworksController::actionIndex()
9. in /var/www/affbank.com/vendor/yiisoft/yii2/base/InlineAction.php at line 57 – call_user_func_array([frontend\controllers\CpaNetworksController, 'actionIndex'], [])
10. in /var/www/affbank.com/vendor/yiisoft/yii2/base/Controller.php at line 156 – yii\base\InlineAction::runWithParams(['NetworkSearch' => ['name' => '']])
11. in /var/www/affbank.com/vendor/yiisoft/yii2/base/Module.php at line 523 – yii\base\Controller::runAction('index', ['NetworkSearch' => ['name' => '']])
12. in /var/www/affbank.com/vendor/yiisoft/yii2/web/Application.php at line 102 – yii\base\Module::runAction('cpa-networks/index', ['NetworkSearch' => ['name' => '']])
13. in /var/www/affbank.com/vendor/yiisoft/yii2/base/Application.php at line 380 – yii\web\Application::handleRequest(yii\web\Request)
14. in /var/www/affbank.com/frontend/web/index.php at line 18 – yii\base\Application::run()
12131415161718192021222324    require(__DIR__ . '/../../common/config/main-local.php'),
    require(__DIR__ . '/../config/main.php'),
    require(__DIR__ . '/../config/main-local.php')
);

$application = new yii\web\Application($config);
$application->run();

function d($params)
{
    echo '<pre>';
    var_dump($params);
    echo '</pre>';
 $_GET = [
    'NetworkSearch' => [
        'name' => '',
    ],
];

$_COOKIE = [
    '_csrf' => '564a70d8e4cf980d1f6bd93623efaff9296929fa9e1cd0e766012911e716baeca:2:{i:0;s:5:"_csrf";i:1;s:32:"W9rKfJIvt2JOAp5tn_nfedqLUTqHZ7Jq";}',
    'modalRegister' => 'off',
    'sentence' => 'e7260496b8c99db8dfddc1f33345fc745f33381cac743ae6590135b5a01779a5a:2:{i:0;s:8:"sentence";i:1;i:0;}',
    'SetComment' => '1104c08842be1682ed6e35797bab75e7b4cf54814d859a1b6f3aacfe1eb9006da:2:{i:0;s:10:"SetComment";i:1;s:4:"null";}',
    '_ym_uid' => '1496247110876980539',
    'PHPSESSID' => 't24iu9r622pgt6fed6tosoplp2',
    '_ga' => 'GA1.2.1031265817.1496237975',
    '_gid' => 'GA1.2.1704277702.1496647079',
];

$_SESSION = [
    '__flash' => [],
    'user.language.name' => 'English',
    'user.language.locale' => 'en-US',
    'currentUrl' => '/cpa-networks?NetworkSearch%5Bname%5D=',
];