My configuration compile line is;
./configure' '--enable-ctype' '--with-xml' '--with-xmlrpc' '--enable-xslt' '--with-sablot-js' '--enable-xslt' '--with-xslt-sablot' '--with-dom' '--with-openssl' '--with-sockets' '--with-curl=../dependencies/curl-7.10.3' '--with-pgsql' '--with-mhash=../dependencies/mhash-0.8.18' '--with-ming' '--with-imap=../dependencies/imap-2002b' '--with-freetype-dir=../dependencies/freetype-2.1.4rc1' '--with-zlib-dir=../dependencies/zlib-1.1.4' '--with-gd' '--enable-gd-native-ttf' '--enable-gd-imgstrttf' '--with-jpeg-dir=/usr/lib' '--with-png-dir=/usr/lib' '--enable-mbstring' '--enable-mbstr-enc-trans' '--with-apxs'

The code that creates the bug;
	$doc = domxml_new_doc("1.0");
	$layoutsListNode = $doc->create_element('Response');
	$layoutsListNode->set_attribute('message', $message);
	$layoutsListNode->set_attribute('baseObject', $baseObject);
	$layoutsListNode = $doc->append_child($layoutsListNode);
	echo $doc->dump_mem());

The page that uses the above code serves mutiple requests from a Flash movie using XML over HTTP. Each time I call this page from my Flash movie the XML declaration gets repeated in the response back to the Flash client. The number of extra tags corresponds exactly with the number of requests done from the Flash movie during that Flash session. In theory each request is in a seperate HTTP request so I would have thought PHP and Flash would not have been able to do this.

It looks to me that Flash is keeping the HTTP session alive during is lifetime but for some reason PHP is getting a bit confused from client request to client request.

I have found a temporary work around but it is an ugly hack.
echo str_replace("<?xml version=\"1.0\"?>", "", $doc->dump_mem());

As Flash does not need the declaration tag, doesn't cause any harm here.

Any thoughts?