Recursive array segfaults soap encoding

[YuanchengJiang]

Description

The following code:

<?php
$tmp = &$utf8_string;
$utf8_string[] = $tmp;
$fusion = $utf8_string;
$client = new SoapClient(NULL,array("location"=>"test://","uri"=>"http://soapinterop.org/","trace"=>1,"exceptions"=>0));
$client->__soapCall("echoStructArray", array(array($struct1,$fusion)), array("soapaction"=>"http://soapinterop.org/","uri"=>"http://soapinterop.org/"));

PHP Version

PHP 8.4.0-dev

Operating System

ubuntu 22.04

[nielsdos]

It's missing the typical array/object recursion protection; and even when fixing that it probably can fail with e.g. very deeply nested objects.