SeoComponent.php
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<?php
namespace frontend\components;
use Yii;
use yii\base\BootstrapInterface;
class SeoComponent implements BootstrapInterface
{
public function bootstrap($app)
{
if(\Yii::$app->request->isGet) {
\Yii::$app->on(\yii\base\Application::EVENT_BEFORE_REQUEST, function($event) {
$array = ['%21'=>'!','%22'=>'"','%23'=>'#','%24'=>'$','%25'=>'%','%26'=>'&','%27'=>'\'','%28'=>'(','%29'=>')','%2a'=>'*','%2b'=>'+','%2c'=>',','%2d'=>'-','%2e'=>'.','%2f'=>'/','%3a'=>':','%3b'=>';','%3c'=>'<','%3d'=>'=','%3e'=>'>','%3f'=>'?','%40'=>'@','%5b'=>'[','%5c'=>'\\','%5d'=>']','%5e'=>'^','%5f'=>'_','%60'=>'`','%7b'=>'{','%7c'=>'|','%7d'=>'}','%7e'=>'~'];
$url = mb_strtolower (\Yii::$app->request->url);
$continue = true;
foreach($array as $sym=>$sym_row){
if(strpos($url, $sym)){
$url = str_replace($sym, $sym_row, $url);
$continue = false;
}
}
if(!$continue){
\Yii::$app->getResponse()->redirect($url);
}
});
}
return $app;
}
}