Warning: array_key_exists() expects parameter 2 to be array, string given

[winks]

Hello,
I was sending some JSON like

    {"success":true,"message":"OK","data":{"id":15,"foo":23,"campaign":"ASDF","campaign_id":1}}

and got this:

Warning: array_key_exists() expects parameter 2 to be array, string given in /srv/www/vendor/jms/serializer/src/JMS/Serializer/GenericDeserializationVisitor.php line 165

When I stop sending "campaign", only "campaign_id" it seems to work.

It might very well be that I missed something, or using it wrong, but this patch might be useful anyway :)

--- vendor/jms/serializer/src/JMS/Serializer/GenericDeserializationVisitor.php.old  2013-03-28 16:02:37.909925723 +0100
+++ vendor/jms/serializer/src/JMS/Serializer/GenericDeserializationVisitor.php  2013-03-28 16:01:37.640657807 +0100
@@ -161,7 +161,7 @@
     public function visitProperty(PropertyMetadata $metadata, $data)
     {
         $name = $this->namingStrategy->translateName($metadata);
-        if (null === $data || ! array_key_exists($name, $data)) {
+        if (null === $data || !is_array($data) || ! array_key_exists($name, $data)) {
             return;
         }

[sprain]

Same problem here …

[sprain]

Fixed it!
I had a wrong serializer type in my annotations.

I had this:

/**
     * @Serializer\Type("array<Acme\Bundle\BaseBundle\Entity\Host>")
     * @Serializer\Groups({"details"})
     */
    private $host;

When it should have been this:

/**
     * @Serializer\Type("Acme\Bundle\BaseBundle\Entity\Host")
     * @Serializer\Groups({"details"})
     */
    private $host;

Hope this will be helpful for somebody else, too.

[tquiroga]

Same problem for me, I checked my @Serializer\Type it looks fine...

[Tobion]

I also get this error from time to time. Probably when the the serialization annotation changes but you feed it with old data. So in this case an error is understandable. But it should probably be a little more fault-tolerant or give a better error message instead of a php warning.

[Tobion]

Duplicate of #110

[oshanz]

@sprain +1

[hasmo]

I can confirm that I had the same problem as mentioned in #110:

Used:

 <type><![CDATA[ArrayCollection<My\Namespace\Class\Name>]]></type>

Instead of:

 <property name="foo" type="My\Namespace\Class\Name" serialized-name="foo">

[goetas]

solved with #398