错误：在非对象[重复]上调用成员函数getId（）

I am trying to get the id from a entity object.

The Code

public function findByName($name)
{
    $qb = $this->createQueryBuilder('u');
    $qb->where('u.name  = :name');
    $qp->setParameter('name', $name);
    return $qb->getQuery()->getResult();
}

And I am calling the function like this

$Obj = $this->getDoctrine()->getRepository('UserBundle:User');
$idName=$Obj->findByName('Sarah');
var_dump($idName->getId());

I am getting an error for this part var_dump($idName->getId());.

I am getting the whole Object and I just want the Id. It doesn't work.

$idName dumps to this:

@array(1) {<br>
[0]=> object(UserBundle\Entity\User)#2339 (2) { <br>
["id":"UserBundle\Entity\User":private]=> int(2) ["name":"UserBundle\Entity\User":private]=> string(8) "Sarah" <br>
} }

</div>

findBy... always returns an array of found entities (even if there is just one found for the criteria). Use findOneBy... to always get only the first entity returned.

Your problem is that $idName is an @array(1), not an object. Try using this to get to it

var_dump($idName[0]->getId());