Description:
------------
I get a seg fault when i try to record a soapClient into the Session.

the crash occurs with both  standalone php (php -q client10b.php) and apache running php.

The bt have been produced with gdb and stanalone php.


Reproduce code:
---------------
<?php
        session_start();
        $client = new SoapClient("soap10.wsdl", Array('trace'=>1));
        ini_set("soap.wsdl_cache_enabled", "0"); // disabling WSDL cache
        var_dump($client->__getFunctions());
        echo("<BR>\n");
        var_dump($client->__getTypes());
        $_SESSION['phvclient10'] = $client;
?>

plus soap10.wsdl===========================================
<?xml version ='1.0' encoding ='UTF-8' ?>
<definitions name='Increment'
  targetNamespace='http://example.org/increment'
  xmlns:tns=' http://example.org/increment '
  xmlns:soap='http://schemas.xmlsoap.org/wsdl/soap/'
  xmlns:xsd='http://www.w3.org/2001/XMLSchema'
  xmlns:soapenc='http://schemas.xmlsoap.org/soap/encoding/'
  xmlns:wsdl='http://schemas.xmlsoap.org/wsdl/'
  xmlns='http://schemas.xmlsoap.org/wsdl/'>

<message name='getTempRequest'>
  <part name='symbol' type='xsd:string'/>
</message>
<message name='getTempResponse'>
  <part name='Result' type='xsd:float'/>
</message>

<message name='IncrementRequest'>
  <part name='symbol' type='xsd:positiveInteger'/>
</message>
<message name='IncrementResponse'>
  <part name='Result' type='xsd:integer'/>
</message>


<portType name='IncPortType'>
  <operation name='getTemp'>
    <input message='tns:getTempRequest'/>
    <output message='tns:getTempResponse'/>
  </operation>
  <operation name='increment'>
    <input message='tns:IncrementRequest'/>
    <output message='tns:IncrementResponse'/>
  </operation>
</portType>

<binding name='IncrementBinding' type='tns:IncPortType'>
  <soap:binding style='rpc'
    transport='http://schemas.xmlsoap.org/soap/http'/>

  <operation name='increment'>
    <soap:operation soapAction='urn:localhost-increment#increment'/>
    <input>
      <soap:body use='litteral' namespace='urn:localhost-increment'
        encodingStyle='http://schemas.xmlsoap.org/soap/encoding/'/>
    </input>
    <output>
      <soap:body use='litteral' namespace='urn:localhost-increment'
        encodingStyle='http://schemas.xmlsoap.org/soap/encoding/'/>
    </output>
  </operation>

  <operation name='getTemp'>
    <soap:operation soapAction='urn:localhost-increment#getTemp'/>
    <input>
      <soap:body use='litteral' namespace='urn:localhost-increment'
        encodingStyle='http://schemas.xmlsoap.org/soap/encoding/'/>
    </input>
    <output>
      <soap:body use='litteral' namespace='urn:localhost-increment'
        encodingStyle='http://schemas.xmlsoap.org/soap/encoding/'/>
    </output>
  </operation>


</binding>

<service name='IncrementService'>
  <port name='TempPort' binding='IncrementBinding'>
    <soap:address location='http://localhost/phv/server10.php'/>
  </port>
</service>
</definitions>
===========================================================

Expected result:
----------------
No seg fault

Actual result:
--------------
#0  0x081b166c in zend_throw_exception_internal (exception=0xbfe2aff0)
    at /root/php5/php-5.0.2/Zend/zend_exceptions.c:53
#1  0x081b2cb9 in zend_throw_exception_object (exception=0x9e8099c)
    at /root/php5/php-5.0.2/Zend/zend_exceptions.c:571
#2  0x080a984a in do_soap_call (this_ptr=0x9e81bac,
    function=0x9e81b74 "__sleep", function_len=7, arg_count=0, real_args=0x0,
    return_value=0x9e81c14, soap_action=0x0, call_uri=0x0, soap_headers=0x0,
    output_headers=0x0) at /root/php5/php-5.0.2/ext/soap/soap.c:2225
#3  0x080aa25c in zif_SoapClient___call (ht=2, return_value=0x9e81c14,
    this_ptr=0x9e81bac, return_value_used=1)
    at /root/php5/php-5.0.2/ext/soap/soap.c:2315
#4  0x0819acde in zend_call_function (fci=0xbfe2b060, fci_cache=0x0)
    at /root/php5/php-5.0.2/Zend/zend_execute_API.c:856
#5  0x0819a851 in call_user_function_ex (function_table=0x0, object_pp=0x0,
    function_name=0x0, retval_ptr_ptr=0x0, param_count=0, params=0x0,
    no_separation=0, symbol_table=0x0)
    at /root/php5/php-5.0.2/Zend/zend_execute_API.c:553
#6  0x081b3c8a in zend_std_call_user_call (ht=0, return_value=0x9e81be4,
    this_ptr=0x9e81bac, return_value_used=1)
    at /root/php5/php-5.0.2/Zend/zend_object_handlers.c:572
#7  0x0819acde in zend_call_function (fci=0xbfe2b240, fci_cache=0x0)
    at /root/php5/php-5.0.2/Zend/zend_execute_API.c:856
#8  0x0819a851 in call_user_function_ex (function_table=0x0, object_pp=0x0,
    function_name=0x0, retval_ptr_ptr=0x0, param_count=0, params=0x0,
    no_separation=0, symbol_table=0x0)
    at /root/php5/php-5.0.2/Zend/zend_execute_API.c:553
#9  0x0815455c in php_var_serialize_intern (buf=0xbfe2b3f0, struc=0x9e81640,
    var_hash=0xbfe2b3c0) at /root/php5/php-5.0.2/ext/standard/var.c:686
#10 0x08154b02 in php_var_serialize (buf=0xbfe2b3f0, struc=0x9e81640,
    var_hash=0xbfe2b3c0) at /root/php5/php-5.0.2/ext/standard/var.c:780
#11 0x0809d86f in ps_srlzr_encode_php (newstr=0x0, newlen=0xbfe2b460)
    at /root/php5/php-5.0.2/ext/session/session.c:452
#12 0x0809de3c in php_session_encode (newlen=0xbfe2b460)
    at /root/php5/php-5.0.2/ext/session/session.c:546
#13 0x0809e513 in php_session_save_current_state ()
    at /root/php5/php-5.0.2/ext/session/session.c:805
#14 0x080a0ff1 in php_session_flush ()
    at /root/php5/php-5.0.2/ext/session/session.c:1713
#15 0x080a100f in zm_deactivate_session (type=1, module_number=9)
---Type <return> to continue, or q <return> to quit---
    at /root/php5/php-5.0.2/ext/session/session.c:1727
#16 0x081a76dd in module_registry_cleanup (module=0x0)
    at /root/php5/php-5.0.2/Zend/zend_API.c:1536
#17 0x081a9fc9 in zend_hash_apply (ht=0x8225fc0,
    apply_func=0x81a76ac <module_registry_cleanup>)
    at /root/php5/php-5.0.2/Zend/zend_hash.c:664
#18 0x081a3d68 in zend_deactivate_modules ()
    at /root/php5/php-5.0.2/Zend/zend.c:803
#19 0x08171978 in php_request_shutdown (dummy=0x0)
    at /root/php5/php-5.0.2/main/main.c:1198
#20 0x081ca853 in main (argc=3, argv=0xbfe2bd24)
    at /root/php5/php-5.0.2/sapi/cli/php_cli.c:1046
(gdb)