[php-src] Issue #8643: SOAP segfault /w x86/32b build

Issue: https://github.com/php/php-src/issues/8643 Author: mvorisek ### Description Reproducible /w ext\soap\tests\interop\Round4\GroupH\r4_groupH_simple_rpcenc_002w.phpt test see https://github.com/php/php-src/runs/6289390413?check_suite_focus=true#step:8:3238 ``` ========DIFF======== 001+ Can't initialize heap: [0x000001e7] Attempt to access invalid address 002+ 003+ Termsig=-1073741819 001- <?xml version="1.0" encoding="UTF-8"?> 002- <SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ns1="http://soapinterop.org/wsdl" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><SOAP-ENV:Body><ns1:echoStringFault><param xsi:type="xsd:string">Hello World</param></ns1:echoStringFault></SOAP-ENV:Body></SOAP-ENV:Envelope> 003- <?xml version="1.0" encoding="UTF-8"?> 004- <SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ns1="http://soapinterop.org/wsdl" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><SOAP-ENV:Body><SOAP-ENV:Fault><faultcode>SOAP-ENV:Server</faultcode><faultstring>Fault in response to 'echoStringFault'.</faultstring><detail><ns1:part2 xsi:type="xsd:string">Hello World</ns1:part2></detail></SOAP-ENV:Fault></SOAP-ENV:Body></SOAP-ENV:Envelope> 005- ok ========DONE======== ``` ### PHP Version latest 8.0 ### Operating System Windows, probably also linux, x86/32b target arch