Redirect Yii2 to a page when there is no connection

Question

Yii2 shows

SQLSTATE[HY000] [2002] A socket operation was attempted to an unreachable host.

when there is no internet access, how can I make it redirect to a page, says ./index.php?r=site/neterror? I tried to do this in web/index.php by using this code

<?php
use yii\db\Exception;
defined('YII_DEBUG') or define('YII_DEBUG', true);
defined('YII_ENV') or define('YII_ENV', 'dev');
require(__DIR__ . '/../vendor/autoload.php');
require(__DIR__ . '/../vendor/yiisoft/yii2/Yii.php');
$config = require(__DIR__ . '/../config/web.php');
try
{
    (new yii\web\Application($config))->run();  
}
catch(Exception $e) {
    header("Location: ./index.php?r=site/error"); /* Redirect browser */
    exit();
}

but all I get back is The page isn't redirecting properly.

just change your debug YII_DEBUG environment to 'false'

Double H
– Double H

2016-06-24 05:19:59 +00:00
Commented Jun 24, 2016 at 5:19 — Double H
– Double H, Commented Jun 24, 2016 at 5:19

Double H · Accepted Answer · 2016-06-24 05:24:31Z

1

Following Database Exception View With different msg shown only when YII_DEBUG is true in Entry Script..

As Defined in Yii ErrorHandler Class to use Own View On UserException you have to false YII_DEBUG

class ErrorHandler extends \yii\base\ErrorHandler{
....
  protected function renderException($exception){
  ..
   $useErrorView = $response->format === Response::FORMAT_HTML && (!YII_DEBUG || $exception instanceof UserException);

    if ($useErrorView && $this->errorAction !== null) {
        $result = Yii::$app->runAction($this->errorAction);
        if ($result instanceof Response) {
            $response = $result;
        } else {
            $response->data = $result;
        }
    } 
  }


}

answered Jun 24, 2016 at 5:24

Double H

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