Symfony2 - 从呼叫服务选项获取返回结果

I'm trying to get the return result from a method perform by the call option of service. So My service.xml :

<service id="myService" class="serviceClass">
    <argument type="service" id="..."/>
    <argument type="service" id="..."/>        
    <call method="myReturnProblem"/>
</service>

My service method :

function serviceMethod(){
    ...
    $foo = "bar"
    var_dump($foo);
    return true;
}

My Controller :

function sampleAction(){
    ...
    $this->get('my_Service');
    return Response...
}

So, i can see with the var_dump that the method is running like i hope but i don't know how can i get the return true(same problem if i try to get $foo or what else) .

Right now if i make :

if($this->('my_Service))

it doesn't work cause it doesn't contains the result. To get it i have to make something like

if($this->('my_Service')->serviceMethod())

but it runs the serviceMethod twice.

I wanted make something like :

if($this->get('my_Service')){}

Any idea ? thanks.

What you did is called Setter Injection, references available here and here

As the name suggests, it is for injecting a service into another service, not for returning value.

To achieve a result purpose, you should create a regular method inside the service to process values and then return the result.

public function myMethod()
{
    ...
    $foo = "bar";
    var_dump($foo);
    return true;
}