[php-maint] Bug#787081: php5: segfault when using SoapClient::__setSoapHeader

[segfault when using SoapClient::__setSoapHeader in php 5.6.7]

Source: php5
Version: 5.6.7+dfsg-1
Severity: important

Dear Maintainer,

*** Reporter, please consider answering these questions, where appropriate ***

   * What led up to the situation?
We use a SOAP connection with partners

   * What exactly did you do (or not do) that was effective (or
     ineffective)?
The problem appeared once after migration of php in wheezy to version 5.4.39-0+deb7u1 (https://www.debian.org/security/2015/dsa-3198) and it was fixed.
Following migration to Jessie and php 5.6.7+dfsg-1 the problem reappeared.
   * What was the outcome of this action?
When I launch a SOAP connection which use __setSoapHeader I get a segmentation fault
   * What outcome did you expect instead?
I expected to connect

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-- System Information:
Debian Release: 8.0
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 3.18.11-vs2.3.7.4-beng (SMP w/8 CPU cores)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: sysvinit (via /sbin/init)