提供给 Escape 助手的 ZF3 Doctrine 对象,但标志不允许递归

ZF3 Doctrine Object provided to Escape helper, but flags do not allow recursion

在我的 specialisme 实体中,我想连接所有列并显示来自 specialisme 的行与连接的列,但我得到错误:对象提供给 Escape 助手,但标志不允许递归

专业实体:

/**
 * @ORM\OneToOne(targetEntity="User\Entity\User")
 * @ORM\JoinColumn(name="user_id", referencedColumnName="id")
 */
private $fullname;

//...

/**
 * Returns fullname.
 * @return string     
 */
public function getFullName() 
{
    return $this->fullname;
} 

在控制器中:

    public function indexAction()
    {
    //Array met alle user samenstellen
    $users = $this->entityManager->getRepository(Specialisme::class)->findBy([], ['id'=>'ASC']);

    //Users doorgeven aan view model        
    return new ViewModel([
        'users' => $users
    ]);

    return new ViewModel();
}

查看:

<tr>
    <th>Naam</th>
    <th>Specialisme</th>
    <th>Sub-specialisme</th>
</tr>

<?php foreach ($users as $user): ?>

<tr>
    <td>f</td>
    <td><?= $this->escapeHtml($user->getId()); ?></td>
    <td><?= $this->escapeHtml($user->getFullName()); ?></td>
</tr>

<?php endforeach; ?> 

它返回对象,所以我必须使用引用对象的方法:

$user->getBeschikbaarheid()->getOpZoekNaar());