Description:
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Using the new PHP5 SOAP extension, I am building a web service, with both a PHP Client and a PHP Server.
I have a simple class 'fileAttachment' which I send via the WS PHP Client to the PHP Web Service. The web service is also a simple class that is supposed to process the fileAttachment received.
Everything works fine until the SOAP request size goes over 24345 bytes.
When this limit is reached, I get the SOAP Fault[faultstring] => Failed Sending HTTP SOAP request [faultcode] => HTTP.

If I remove just 1 byte of the fileAttachment content, the request works fine.

Reproduce code:
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The WS Server code is at :
http://www.freewebs.com/reude/serverSimpleWS.php
and the main class is at :
http://www.freewebs.com/reude/simpleWS.class.php

The wsdl is located at http://www.freewebs.com/reude/simpleWS.wsdl

The Client is at : 
http://www.freewebs.com/reude/clientSimpleWS.php

and the help fileAttachment.class is at :
http://www.freewebs.com/reude/fileAttachment.class.php

The file to sent is at : http://www.freewebs.com/reude/small.bin


Expected result:
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var_dump of response is just an echo of the fileAttachment that has been sent :

object(stdClass)#4 (2) { ["simpleWSResponse"]=> object(stdClass)#3 (2) { ["responseCode"]=> string(3) "000" ["responseMessage"]=> string(29) "Reflects the input parameters" } ["packageID"]=> string(23823) "c:\temp\small.bin / 23642 / object(stdClass)#2 (3) { ["fileName"]=> string(17) "c:\temp\small.bin" ["fileSize"]=> string(5) "23642" ["fileContent"]=> string(23642) "6kd5NaRSP ... truncated ... N6aRSPbRy01" } " }

Actual result:
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var_dump of response is :

SoapFault Object ( [message:protected] => [string:private] => [code:protected] => 0 [file:protected] => c:\program files\easyphp1-7-php5\www\php5soapserver\clientsimplews.php [line:protected] => 30 [trace:private] => Array ( [0] => Array ( [file] => c:\program files\easyphp1-7-php5\www\php5soapserver\clientsimplews.php [line] => 30 [function] => __call [class] => SoapClient [type] => ->  [args] => Array ( [0] => c:\temp\small.bin236436kd5NaRSPbRybXdW+++... truncated ... WSqQN6kd5NaRSPbRy012 ) [enc_stype] => fileAttachment [enc_ns] => http://soapinterop.org/xsd ) ) ) ) ) ) [faultstring] => Failed Sending HTTP SOAP request [faultcode] => HTTP )