blocks|key|837590|text|您可以使用以下命令自动编码到Json，即您的复杂实体：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|837591|use+Symfony\Component\Serializer\Serializer;
use+Symfony\Component\Serializer\Normalizer\GetSetMethodNormalizer;
use+Symfony\Component\Serializer\Encoder\JsonEncoder;

$serializer+=+new+Serializer(array(new+GetSetMethodNormalizer()),+array('json'+=>+new+
JsonEncoder()));
$json+=+$serializer->serialize($entity,+'json');|code-block|syntax|javascript|837592|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You can automatically encode into Json, your complex entity with:

<pre><code>use Symfony\Component\Serializer\Serializer;
use Symfony\Component\Serializer\Normalizer\GetSetMethodNormalizer;
use Symfony\Component\Serializer\Encoder\JsonEncoder;

$serializer = new Serializer(array(new GetSetMethodNormalizer()), array('json' =&gt; new 
JsonEncoder()));
$json = $serializer-&gt;serialize($entity, 'json');
</code></pre>

blocks|key|621754|text|我只需要解决同样的问题:对一个实体("User")进行json编码，该实体(“User”)与另一个实体("Location")具有一对多的双向关联。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|621755|我尝试了几种方法，现在我想我找到了最佳的可接受的解决方案。我们的想法是使用与David编写的代码相同的代码，但通过告诉规范化程序在某个点停止，以某种方式拦截无限递归。|621756|我不想实现一个自定义的规范器，因为在我看来这个GetSetMethodNormalizer是一个很好的方法(基于反射等)。因此，我决定将其子类化，这乍一看并不是微不足道的，因为表明是否包含属性(isGetMethod)的方法是私有的。|621757|但是，可以覆盖normalize方法，所以我在这一点上截获了，只需取消设置引用"Location“的属性-这样无限循环就会中断。|621758|在代码中，它看起来像这样：|621759|class+GetSetMethodNormalizer+extends+\Symfony\Component\Serializer\Normalizer\GetSetMethodNormalizer+{

++++public+function+normalize($object,+$format+=+null)
++++{
++++++++//+if+the+object+is+a+User,+unset+location+for+normalization,+without+touching+the+original+object
++++++++if($object+instanceof+\Leonex\MoveBundle\Entity\User)+{
++++++++++++$object+=+clone+$object;
++++++++++++$object->setLocations(new+\Doctrine\Common\Collections\ArrayCollection());
++++++++}

++++++++return+parent::normalize($object,+$format);
++++}

}+|code-block|syntax|javascript|621760|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|S|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|T|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|U|8|@]|9|@]|A|$]]|$1|J|3|K|5|L|7|V|8|@]|9|@]|A|$M|N]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

I just had to solve the same problem: json-encoding an entity ("User") having a One-To-Many Bidirectional Association to another Entity ("Location").

I tried several things and I think now I found the best acceptable solution. The idea was to use the same code as written by David, but somehow intercept the infinite recursion by telling the Normalizer to stop at some point.

I did not want to implement a custom normalizer, as this GetSetMethodNormalizer is a nice approach in my opinion (based on reflection etc.). So I've decided to subclass it, which is not trivial at first sight, because the method to say if to include a property (isGetMethod) is private.

But, one could override the normalize method, so I intercepted at this point, by simply unsetting the property that references "Location" - so the inifinite loop is interrupted.

In code it looks like this:

<pre class="lang-php prettyprint-override"><code>class GetSetMethodNormalizer extends \Symfony\Component\Serializer\Normalizer\GetSetMethodNormalizer {

 public function normalize($object, $format = null)
 {
 // if the object is a User, unset location for normalization, without touching the original object
 if($object instanceof \Leonex\MoveBundle\Entity\User) {
 $object = clone $object;
 $object-&gt;setLocations(new \Doctrine\Common\Collections\ArrayCollection());
 }

 return parent::normalize($object, $format);
 }

} 
</code></pre>

blocks|key|621819|text|另一种选择是使用JMSSerializerBundle。然后在您的控制器中执行以下操作|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|621820|$serializer+=+$this->container->get('serializer');
$reports+=+$serializer->serialize($doctrineobject,+'json');
return+new+Response($reports);+//+should+be+$reports+as+$doctrineobject+is+not+serialized|code-block|syntax|javascript|621821|您可以使用entity类中的批注来配置序列化的执行方式。请参阅上面链接中的文档。例如，下面是如何排除链接实体的方法：|621822|+/**
*+Iddp\RorBundle\Entity\Report
*
*+@ORM\Table()
*+@ORM\Entity(repositoryClass="Iddp\RorBundle\Entity\ReportRepository")
*+@ExclusionPolicy("None")
*/
....
/**
*+@ORM\ManyToOne(targetEntity="Client",+inversedBy="reports")
*+@ORM\JoinColumn(name="client_id",+referencedColumnName="id")
*+@Exclude
*/
protected+$client;|621823|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/schmittjoh/JMSSerializerBundle/blob/master/Resources/doc/index.rst^0|8|J|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@$A|V|B|W|1|X]]|C|$]]|$1|D|3|E|5|F|7|Y|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|Z|8|@]|9|@]|C|$]]|$1|K|3|L|5|F|7|10|8|@]|9|@]|C|$G|H]]|$1|M|3|-4|5|6|7|11|8|@]|9|@]|C|$]]]|N|$O|$5|P|Q|R|C|$S|T]]]]

Another option is to use the <a href="https://github.com/schmittjoh/JMSSerializerBundle/blob/master/Resources/doc/index.rst" rel="noreferrer">JMSSerializerBundle</a>. In your controller you then do 

<pre><code>$serializer = $this-&gt;container-&gt;get('serializer');
$reports = $serializer-&gt;serialize($doctrineobject, 'json');
return new Response($reports); // should be $reports as $doctrineobject is not serialized
</code></pre>

You can configure how the serialization is done by using annotations in the entity class. See the documentation in the link above. For example, here's how you would exclude linked entities:

<pre><code> /**
* Iddp\RorBundle\Entity\Report
*
* @ORM\Table()
* @ORM\Entity(repositoryClass="Iddp\RorBundle\Entity\ReportRepository")
* @ExclusionPolicy("None")
*/
....
/**
* @ORM\ManyToOne(targetEntity="Client", inversedBy="reports")
* @ORM\JoinColumn(name="client_id", referencedColumnName="id")
* @Exclude
*/
protected $client;
</code></pre>

blocks|key|621923|text|我发现序列化实体问题的解决方案如下：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|621924|#config/config.yml

services:
++++serializer.method:
++++++++class:+Symfony\Component\Serializer\Normalizer\GetSetMethodNormalizer
++++serializer.encoder.json:
++++++++class:+Symfony\Component\Serializer\Encoder\JsonEncoder
++++serializer:
++++++++class:+Symfony\Component\Serializer\Serializer
++++++++arguments:
++++++++++++-+[@serializer.method]
++++++++++++-+{json:+@serializer.encoder.json+}|code-block|syntax|javascript|621925|在我的控制器中：|621926|$serializer+=+$this->get('serializer');

$entity+=+$this->get('doctrine')
+++++++++++++++->getRepository('myBundle:Entity')
+++++++++++++++->findOneBy($params);


$collection+=+$this->get('doctrine')
+++++++++++++++->getRepository('myBundle:Entity')
+++++++++++++++->findBy($params);

$toEncode+=+array(
++++'response'+=>+array(
++++++++'entity'+=>+$serializer->normalize($entity),
++++++++'entities'+=>+$serializer->normalize($collection)
++++),
);

return+new+Response(json_encode($toEncode));|621927|其他示例：|621928|$serializer+=+$this->get('serializer');

$collection+=+$this->get('doctrine')
+++++++++++++++->getRepository('myBundle:Entity')
+++++++++++++++->findBy($params);

$json+=+$serializer->serialize($collection,+'json');

return+new+Response($json);|621929|您甚至可以将其配置为在http://api.symfony.com/2.0中反序列化数组|offset|length|621930|entityMap|0|LINK|mutability|MUTABLE|url|http://api.symfony.com/2.0/^0|0|0|0|0|0|0|B|Q|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|11|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|12|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|13|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|14|8|@]|9|@]|A|$]]|$1|M|3|N|5|D|7|15|8|@]|9|@]|A|$E|F]]|$1|O|3|P|5|6|7|16|8|@]|9|@$Q|17|R|18|1|19]]|A|$]]|$1|S|3|-4|5|6|7|1A|8|@]|9|@]|A|$]]]|T|$U|$5|V|W|X|A|$Y|Z]]]]

I found the solution to the problem of serializing entities was as follows:

<pre><code>#config/config.yml

services:
 serializer.method:
 class: Symfony\Component\Serializer\Normalizer\GetSetMethodNormalizer
 serializer.encoder.json:
 class: Symfony\Component\Serializer\Encoder\JsonEncoder
 serializer:
 class: Symfony\Component\Serializer\Serializer
 arguments:
 - [@serializer.method]
 - {json: @serializer.encoder.json }
</code></pre>

in my controller:

<pre><code>$serializer = $this-&gt;get('serializer');

$entity = $this-&gt;get('doctrine')
 -&gt;getRepository('myBundle:Entity')
 -&gt;findOneBy($params);


$collection = $this-&gt;get('doctrine')
 -&gt;getRepository('myBundle:Entity')
 -&gt;findBy($params);

$toEncode = array(
 'response' =&gt; array(
 'entity' =&gt; $serializer-&gt;normalize($entity),
 'entities' =&gt; $serializer-&gt;normalize($collection)
 ),
);

return new Response(json_encode($toEncode));
</code></pre>

other example:

<pre><code>$serializer = $this-&gt;get('serializer');

$collection = $this-&gt;get('doctrine')
 -&gt;getRepository('myBundle:Entity')
 -&gt;findBy($params);

$json = $serializer-&gt;serialize($collection, 'json');

return new Response($json);
</code></pre>

you can even configure it to deserialize arrays in <a href="http://api.symfony.com/2.0/" rel="noreferrer">http://api.symfony.com/2.0</a>

blocks|key|621993|text|使用php5.4，您现在可以执行以下操作：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|621994|use+JsonSerializable;

/**
*+@Entity(repositoryClass="App\Entity\User")
*+@Table(name="user")
*/
class+MyUserEntity+implements+JsonSerializable
{
++++/**+@Column(length=50)+*/
++++private+$name;

++++/**+@Column(length=50)+*/
++++private+$login;

++++public+function+jsonSerialize()
++++{
++++++++return+array(
++++++++++++'name'+=>+$this->name,
++++++++++++'login'=>+$this->login,
++++++++);
++++}
}|code-block|syntax|javascript|621995|然后调用|621996|json_encode(MyUserEntity);|621997|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

With php5.4 now you can do :

<pre><code>use JsonSerializable;

/**
* @Entity(repositoryClass="App\Entity\User")
* @Table(name="user")
*/
class MyUserEntity implements JsonSerializable
{
 /** @Column(length=50) */
 private $name;

 /** @Column(length=50) */
 private $login;

 public function jsonSerialize()
 {
 return array(
 'name' =&gt; $this-&gt;name,
 'login'=&gt; $this-&gt;login,
 );
 }
}
</code></pre>

And then call

<pre><code>json_encode(MyUserEntity);
</code></pre>

blocks|key|622057|text|我有同样的问题，我选择创建我自己的编码器，它将自己处理递归。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|622058|我创建了实现Symfony\Component\Serializer\Normalizer\NormalizerInterface的类，以及包含每个NormalizerInterface的服务。|offset|length|style|CODE|622059|#This+is+the+NormalizerService

class+NormalizerService+
{

+++//normalizer+are+stored+in+private+properties
+++private+$entityOneNormalizer;
+++private+$entityTwoNormalizer;

+++public+function+getEntityOneNormalizer()
+++{
++++//Normalizer+are+created+only+if+needed
++++if+($this->entityOneNormalizer+==+null)
++++++++$this->entityOneNormalizer+=+new+EntityOneNormalizer($this);+//every+normalizer+keep+a+reference+to+this+service

++++return+$this->entityOneNormalizer;
+++}

+++//create+a+function+for+each+normalizer



++//the+serializer+service+will+also+serialize+the+entities+
++//(i+found+it+easier,+but+you+don't+really+need+it)
+++public+function+serialize($objects,+$format)
+++{
+++++$serializer+=+new+Serializer(
++++++++++++array(
++++++++++++++++$this->getEntityOneNormalizer(),
++++++++++++++++$this->getEntityTwoNormalizer()
++++++++++++),
++++++++++++array($format+=>+$encoder)+);

+++++return+$serializer->serialize($response,+$format);
}|code-block|syntax|javascript|622060|规格化器的一个例子：|622061|use+Symfony\Component\Serializer\Normalizer\NormalizerInterface;

class+PlaceNormalizer+implements+NormalizerInterface+{

private+$normalizerService;

public+function+__construct($normalizerService)
{
++++$this->service+=+normalizerService;

}

public+function+normalize($object,+$format+=+null)+{
++++$entityTwo+=+$object->getEntityTwo();
++++$entityTwoNormalizer+=+$this->service->getEntityTwoNormalizer();

++++return+array(
++++++++'param'+=>+object->getParam(),
++++++++//repeat+for+every+parameter
++++++++//!!!!+this+is+where+the+entityOneNormalizer+dealt+with+recursivity
++++++++'entityTwo'+=>+$entityTwoNormalizer->normalize($entityTwo,+$format.'_without_any_entity_one')+//the+'format'+parameter+is+adapted+for+ignoring+entity+one+-+this+may+be+done+with+different+ways+(a+specific+method,+etc.)
++++);
}

}|622062|在控制器中：|622063|$normalizerService+=+$this->get('normalizer.service');+//you+will+have+to+configure+services.yml
$json+=+$normalizerService->serialize($myobject,+'json');
return+new+Response($json);|622064|完整的代码在这里：https://github.com/progracqteur/WikiPedale/tree/master/src/Progracqteur/WikipedaleBundle/Resources/Normalizer|622065|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/progracqteur/WikiPedale/tree/master/src/Progracqteur/WikipedaleBundle/Resources/Normalizer^0|0|6|1N|22|J|0|0|0|0|0|0|9|31|0|0^^$0|@$1|2|3|4|5|6|7|14|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|15|8|@$D|16|E|17|F|G]|$D|18|E|19|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|1A|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|1B|8|@]|9|@]|A|$]]|$1|O|3|P|5|J|7|1C|8|@]|9|@]|A|$K|L]]|$1|Q|3|R|5|6|7|1D|8|@]|9|@]|A|$]]|$1|S|3|T|5|J|7|1E|8|@]|9|@]|A|$K|L]]|$1|U|3|V|5|6|7|1F|8|@]|9|@$D|1G|E|1H|1|1I]]|A|$]]|$1|W|3|-4|5|6|7|1J|8|@]|9|@]|A|$]]]|X|$Y|$5|Z|10|11|A|$12|13]]]]

I had the same problem and I chosed to create my own encoder, which will cope by themself with recursion. 

I created classes which implements <code>Symfony\Component\Serializer\Normalizer\NormalizerInterface</code>, and a service which holds every <code>NormalizerInterface</code>.

<pre><code>#This is the NormalizerService

class NormalizerService 
{

 //normalizer are stored in private properties
 private $entityOneNormalizer;
 private $entityTwoNormalizer;

 public function getEntityOneNormalizer()
 {
 //Normalizer are created only if needed
 if ($this-&gt;entityOneNormalizer == null)
 $this-&gt;entityOneNormalizer = new EntityOneNormalizer($this); //every normalizer keep a reference to this service

 return $this-&gt;entityOneNormalizer;
 }

 //create a function for each normalizer



 //the serializer service will also serialize the entities 
 //(i found it easier, but you don't really need it)
 public function serialize($objects, $format)
 {
 $serializer = new Serializer(
 array(
 $this-&gt;getEntityOneNormalizer(),
 $this-&gt;getEntityTwoNormalizer()
 ),
 array($format =&gt; $encoder) );

 return $serializer-&gt;serialize($response, $format);
}
</code></pre>

An example of a Normalizer :

<pre><code>use Symfony\Component\Serializer\Normalizer\NormalizerInterface;

class PlaceNormalizer implements NormalizerInterface {

private $normalizerService;

public function __construct($normalizerService)
{
 $this-&gt;service = normalizerService;

}

public function normalize($object, $format = null) {
 $entityTwo = $object-&gt;getEntityTwo();
 $entityTwoNormalizer = $this-&gt;service-&gt;getEntityTwoNormalizer();

 return array(
 'param' =&gt; object-&gt;getParam(),
 //repeat for every parameter
 //!!!! this is where the entityOneNormalizer dealt with recursivity
 'entityTwo' =&gt; $entityTwoNormalizer-&gt;normalize($entityTwo, $format.'_without_any_entity_one') //the 'format' parameter is adapted for ignoring entity one - this may be done with different ways (a specific method, etc.)
 );
}

}
</code></pre>

In a controller :

<pre><code>$normalizerService = $this-&gt;get('normalizer.service'); //you will have to configure services.yml
$json = $normalizerService-&gt;serialize($myobject, 'json');
return new Response($json);
</code></pre>

The complete code is here : <a href="https://github.com/progracqteur/WikiPedale/tree/master/src/Progracqteur/WikipedaleBundle/Resources/Normalizer" rel="nofollow">https://github.com/progracqteur/WikiPedale/tree/master/src/Progracqteur/WikipedaleBundle/Resources/Normalizer</a>

blocks|key|837962|text|完整的答案是:+Symfony2为json_encode提供了一个包装器：Symfony/Component/HttpFoundation/JsonResponse|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|837963|控制器中的典型用法：|837964|...
use+Symfony\Component\HttpFoundation\JsonResponse;
...
public+function+acmeAction()+{
...
return+new+JsonResponse($array);
}|code-block|syntax|javascript|837965|entityMap|0|LINK|mutability|MUTABLE|url|http://api.symfony.com/2.2/Symfony/Component/HttpFoundation/JsonResponse.html^0|11|19|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@$A|T|B|U|1|V]]|C|$]]|$1|D|3|E|5|6|7|W|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|X|8|@]|9|@]|C|$I|J]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|C|$]]]|L|$M|$5|N|O|P|C|$Q|R]]]]

To complete the answer: Symfony2 comes with a wrapper around json_encode:
<a href="http://api.symfony.com/2.2/Symfony/Component/HttpFoundation/JsonResponse.html" rel="nofollow noreferrer">Symfony/Component/HttpFoundation/JsonResponse</a>
Typical usage in your Controllers:
<pre><code>...
use Symfony\Component\HttpFoundation\JsonResponse;
...
public function acmeAction() {
...
return new JsonResponse($array);
}
</code></pre>

blocks|key|838004|text|在Symfony+2.3中|type|unstyled|depth|inlineStyleRanges|entityRanges|data|838005|/app/config/config.yml|838006|framework:
++++#+сервис+конвертирования+объектов+в+массивы,+json,+xml+и+обратно
++++serializer:
++++++++enabled:+true

services:
++++object_normalizer:
++++++++class:+Symfony\Component\Serializer\Normalizer\GetSetMethodNormalizer
++++++++tags:
++++++++#+помечаем+к+чему+относится+этот+сервис,+это+оч.+важно,+т.к.+иначе+работать+не+будет
++++++++++-+{+name:+serializer.normalizer+}|code-block|syntax|javascript|838007|您的控制器的示例：|838008|/**
+*+Поиск+сущности+по+ИД+объекта+и+ИД+языка
+*+@Route("/search/",+name="orgunitSearch")
+*/
public+function+orgunitSearchAction()
{
++++$array+=+$this->get('request')->query->all();

++++$entity+=+$this->getDoctrine()
++++++++->getRepository('IntranetOrgunitBundle:Orgunit')
++++++++->findOneBy($array);

++++$serializer+=+$this->get('serializer');
++++//$json+=+$serializer->serialize($entity,+'json');
++++$array+=+$serializer->normalize($entity);

++++return+new+JsonResponse(+$array+);
}|838009|但是字段类型\DateTime的问题仍然存在。|838010|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|T|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|U|8|@]|9|@]|A|$G|H]]|$1|M|3|N|5|6|7|V|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

<h2>in Symfony 2.3</h2>

/app/config/config.yml

<pre><code>framework:
 # сервис конвертирования объектов в массивы, json, xml и обратно
 serializer:
 enabled: true

services:
 object_normalizer:
 class: Symfony\Component\Serializer\Normalizer\GetSetMethodNormalizer
 tags:
 # помечаем к чему относится этот сервис, это оч. важно, т.к. иначе работать не будет
 - { name: serializer.normalizer }
</code></pre>

and example for your controller:

<pre><code>/**
 * Поиск сущности по ИД объекта и ИД языка
 * @Route("/search/", name="orgunitSearch")
 */
public function orgunitSearchAction()
{
 $array = $this-&gt;get('request')-&gt;query-&gt;all();

 $entity = $this-&gt;getDoctrine()
 -&gt;getRepository('IntranetOrgunitBundle:Orgunit')
 -&gt;findOneBy($array);

 $serializer = $this-&gt;get('serializer');
 //$json = $serializer-&gt;serialize($entity, 'json');
 $array = $serializer-&gt;normalize($entity);

 return new JsonResponse( $array );
}
</code></pre>

but the problems with the field type \DateTime will remain.

blocks|key|838032|text|现在，您还可以使用Doctrine+ORM+Transformations将实体转换为标量的嵌套数组，然后再转换回来|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|838033|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/Indaxia/doctrine-orm-transformations^0|9|S|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

Now you can also use <a href="https://github.com/Indaxia/doctrine-orm-transformations" rel="nofollow noreferrer">Doctrine ORM Transformations</a> to convert entities to nested arrays of scalars and back

blocks|key|622248|text|被接受的答案是正确的，但是如果你需要序列化一个实体的过滤子集，json_encode就足够了：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|622249|考虑这个例子：|622250|class+FileTypeRepository+extends+ServiceEntityRepository++
{

+++const+ALIAS+=+'ft';
+++const+SHORT_LIST+=+'ft.name+name';

++++public+function+__construct(ManagerRegistry+$registry)
++++{
+++++++++parent::__construct($registry,+FileType::class);
++++}

++++public+function+getAllJsonFileTypes()+
++++{
++++++++return+json_encode($this->getAllFileTypes());
++++}+

+++/**
++++*+@return+array
++++*/
++++public+function+getAllFileTypes()
++++{
++++++++$query+=+$this->createQueryBuilder(self::ALIAS);
++++++++$query->select(self::SHORT_LIST);
++++++++return+$query->getQuery()->getResult();
++++}
}



/**+THIS+IS+ENOUGH+TO+SERIALIZE+AN+ARRAY+OF+ENTITIES+SINCE+the+doctrine+SELECT+will+remove+complex+data+structures+from+the+entities+itself+**/
json_encode($this->getAllFileTypes());+|code-block|syntax|javascript|622251|简要说明:至少在Symfony+5.1上测试过|622252|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|O|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

The accepted answer is correct but if You'll need to serialize a filtered subset of an Entity , json_encode is enough:
Consider this example:
<pre><code>class FileTypeRepository extends ServiceEntityRepository 
{

 const ALIAS = 'ft';
 const SHORT_LIST = 'ft.name name';

 public function __construct(ManagerRegistry $registry)
 {
 parent::__construct($registry, FileType::class);
 }

 public function getAllJsonFileTypes() 
 {
 return json_encode($this-&gt;getAllFileTypes());
 } 

 /**
 * @return array
 */
 public function getAllFileTypes()
 {
 $query = $this-&gt;createQueryBuilder(self::ALIAS);
 $query-&gt;select(self::SHORT_LIST);
 return $query-&gt;getQuery()-&gt;getResult();
 }
}



/** THIS IS ENOUGH TO SERIALIZE AN ARRAY OF ENTITIES SINCE the doctrine SELECT will remove complex data structures from the entities itself **/
json_encode($this-&gt;getAllFileTypes()); 
</code></pre>
Short note: Tested at least on Symfony 5.1

I'm developing game app and using Symfony 2.0. I have many AJAX requests to the backend. And more responses is converting entity to JSON. For example: 

<pre><code>class DefaultController extends Controller
{ 
 public function launchAction()
 { 
 $user = $this-&gt;getDoctrine()
 -&gt;getRepository('UserBundle:User') 
 -&gt;find($id);

 // encode user to json format
 $userDataAsJson = $this-&gt;encodeUserDataToJson($user);
 return array(
 'userDataAsJson' =&gt; $userDataAsJson
 ); 
 }

 private function encodeUserDataToJson(User $user)
 {
 $userData = array(
 'id' =&gt; $user-&gt;getId(),
 'profile' =&gt; array(
 'nickname' =&gt; $user-&gt;getProfile()-&gt;getNickname()
 )
 );

 $jsonEncoder = new JsonEncoder(); 
 return $jsonEncoder-&gt;encode($userData, $format = 'json');
 }
}
</code></pre>

And all my controllers do the same thing: get an entity and encode some of its fields to JSON. I know that I can use normalizers and encode all entitities. But what if an entity has cycled links to other entity? Or the entities graph is very big? Do you have any suggestions? 

I think about some encoding schema for entities... or using <code>NormalizableInterface</code> to avoid cycling..,

How to encode Doctrine entities to JSON in Symfony 2.0 AJAX application?

JSON

我正在开发游戏应用程序并使用Symfony 2.0。我有很多AJAX请求到后端。更多的响应是将实体转换为JSON。例如：class DefaultController extends Controller{               public function launchAction()    {       ...

问如何在Symfony 2.0 AJAX应用程序中将Doctrine实体编码为JSON？
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