Bug #67265 [Opn->Nab]: Segmentation fault on json_encode with json_serializable

From: Date: Tue, 13 May 2014 15:22:34 +0000
Subject: Bug #67265 [Opn->Nab]: Segmentation fault on json_encode with json_serializable
References: 1  Groups: php.bugs 
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Edit report at https://bugs.php.net/bug.php?id=67265&edit=1

 ID:                 67265
 Updated by:         mike@php.net
 Reported by:        edu at offerum dot com
 Summary:            Segmentation fault on json_encode with
                     json_serializable
-Status:             Open
+Status:             Not a bug
 Type:               Bug
 Package:            JSON related
 Operating System:   Linux (Ubuntu 14.04)
 PHP Version:        5.5.12
 Block user comment: N
 Private report:     N

 New Comment:

Still, not a bug.


Previous Comments:
------------------------------------------------------------------------
[2014-05-13 15:21:14] edu at offerum dot com

Yep, I was wrong thinking it has something to do with deleting object variables.
Indeed, the behaviour can be seen pretty clear here:

class C implements JsonSerializable {
    public function jsonSerialize() { 
	$a = clone($this);
        echo 1;
       	return $a;
    }
}
echo json_encode(new C());

Example:
http://3v4l.org/nRMRj

------------------------------------------------------------------------
[2014-05-13 15:19:26] mike@php.net

Yep. This is not a bug but infinite recursion.

------------------------------------------------------------------------
[2014-05-13 15:18:08] levim@php.net

My $0.02; find some way to protect against recursion and then fail nicely.

------------------------------------------------------------------------
[2014-05-13 15:14:46] levim@php.net

Additionally, the code is recursively calling jsonSerialize; you need to return an array.

------------------------------------------------------------------------
[2014-05-13 15:12:52] levim@php.net

Glancing at the backtrace on my local machine this has to do with clone call.

------------------------------------------------------------------------


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    https://bugs.php.net/bug.php?id=67265


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