0
$query = $this->getEntityManager()->createQuery('
SELECT COUNT(s) FROM MyDiaryBundle:TrainingSession s
WHERE s.status = :completed
AND s.user = :user')
->setParameter('user',$user)
->setParameter('completed','confirmed');
$result = $query->getResult();
结果:阵列(1){[0] =>数组(1){[1] =>串(1) “0”}}为什么这个DQL查询生成一个二维数组?
为什么被嵌套阵列与“1键控'?