Bug #78667 [Opn]: Segmentation fault when using clone in jsonSerilization method
| From: | aparcos at gmail dot com | Date: | Sun, 13 Oct 2019 07:40:05 +0000 |
| Subject: | Bug #78667 [Opn]: Segmentation fault when using clone in jsonSerilization method | ||
| References: | 1 | Groups: | php.standards |
| Request: | Send a blank email to standards-+get-1463@lists.php.net to get a copy of this message | ||
Edit report at https://bugs.php.net/bug.php?id=78667&edit=1
ID: 78667
User updated by: aparcos at gmail dot com
Reported by: aparcos at gmail dot com
Summary: Segmentation fault when using clone in
jsonSerilization method
Status: Open
Type: Bug
-Package: Class/Object related
+Package: PHP Language Specification
-Operating System: Debian 10
+Operating System: Irrelevant
PHP Version: Irrelevant
Block user comment: N
Private report: N
New Comment:
Changed affected OS & Package
Previous Comments:
------------------------------------------------------------------------
[2019-10-12 21:44:49] aparcos at gmail dot com
Description:
------------
A segmentation fault is going to happen when you accidentally uses clone inside the jsonSerialize
method that implements JsonSerializable and return the new cloned object. If you uncomment the
following test script, you will see that is going to be called several times until the recursive
call get exhausted and finish given the segmentation fault.
Test script:
---------------
<?php
class CloneThis implements JsonSerializable {
public $date;
public function jsonSerialize() {
$clone = clone $this;
// var_dump($this);
// if ($this->date instanceof DateTime) {
// $clone->date = $this->date->format('Y.m.d');
// }
return $clone;
}
}
$variable = new CloneThis;
$variable->date = new DateTime();
echo json_encode($variable);
Expected result:
----------------
I think should be :
1. or the current date.
2. or An error where many recursive calls are done (maybe)
Actual result:
--------------
////////////////////////////////
...strings removed
object(CloneThis)#52273 (1) {
["date"]=>
string(10) "2019.10.12"
}
object(CloneThis)#52274 (1) {
["date"]=>
string(10) "2019.10.12"
}
object(CloneThis)#52275 (1) {
["date"]=>
string(10) "2019.10.12"
}
object(CloneThis)#52276 (1) {
["date"]=>
string(10) "2019.10.12"
}
object(CloneThis)#52277 (1) {
["date"]=>
Segment violation
------------------------------------------------------------------------
--
Edit this bug report at https://bugs.php.net/bug.php?id=78667&edit=1