unexpected result when call frontend action from console - yii2

Question

i'm trying to call a frontend action from console like
php yii cron/test
console action is like:
public function actionTest(){
yii::$app->controllerNamespace = "frontend\controllers";
$test = Yii::$app->runAction('web-service/test', [
]);
echo $test;
}
frontend action is like:
public function beforeAction($action)
{
if ($action->id == 'test') {
$this->enableCsrfValidation = false;
}
return parent::beforeAction($action);
}
function actionTest(){
$x="hi ";
echo $x;
return $x;
}
in command prmpot i get result like this
hi 0 // i have really tested this codes
"hi" is because of echo in actionTest but i can't understand why printed $test in console is 0?
it seems "return $x" won't work and $x is not returned to console action.
if i move frontend action to somewhere like component (of course with changes like removing beforeaction() and calling component instead of runaction()), i get expected result "hi hi".

Answer 1

In Yii2 Console, the \Yii:$app::runAction() doesn't return data from action.
The runAction() returns an exit code from Console Application, so you get the 0 which means normal:
The result of the action. This can be either an exit code or Response object. Exit code 0 means normal, and other values mean abnormal. Exit code of null is treaded as 0 as well.
yii-console-application#runAction()
Return response object Demo
frontend action:
public function actionTest($value='')
{
return (object)['title'=>'Empty Object'];
}
console action:
public function actionTest($message = 'hello world')
{
yii::$app->controllerNamespace = "frontend\controllers";
$test = Yii::$app->runAction('web-service/test');
echo $test->title;
}