如何在symfony2服务中使用多个参数

Question

This is my service file code

adminusercheck.commonFunc:
        class:        adminBundle\Helpers\CommonFunctions
        #arguments: ["@session"]        

        arguments:
            - @doctrine.orm.entity_manager
            - @session

This is my Service class code

use Doctrine\ORM\EntityManager;
class CommonFunctions{

    private $session;
    protected $em;

    public function __construct(Session $session, EntityManager $em)
    {
        $this->session = $session;
         $this->em = $em;
    }

Answer 1

Your argument order in the constructor is not matching with what's inside the services file.

The following,

public function __construct(Session $session, EntityManager $em)

Needs to be,

public function __construct(EntityManager $em, Session $session)

It is essential to note that argument order is important.

https://symfony.com/doc/2.8/components/dependency_injection.html

On a separate note, try to keep DI's to the minimum as possible. This will have an impact on performance.

Hope this helps. Thanks.