Fix #38354 (Unwanted reformatting of XML when using AsXML)

NEWS

@@ -30,6 +30,7 @@ PHP                                                                        NEWS
 - Fixed phpinfo() cutoff of variables at \0. (Ilia)
 - Fixed a bug in the filter extension that prevented magic_quotes_gpc from
   being applied when RAW filter is used. (Ilia)
+- Fixed bug #38354 (Unwanted reformatting of XML when using AsXML). (Christian)
 - Fixed bug #38347 (Segmentation fault when using foreach with an unknown/empty 
   SimpleXMLElement). (Tony)
 - Fixed bug #38322 (reading past array in sscanf() leads to arbitary code 

ext/simplexml/simplexml.c

@@ -1205,7 +1205,7 @@ SXE_METHOD(asXML)
 					RETURN_FALSE;
 				}
 
-				xmlNodeDumpOutput(outbuf, (xmlDocPtr) sxe->document->ptr, node, 0, 1, NULL);
+				xmlNodeDumpOutput(outbuf, (xmlDocPtr) sxe->document->ptr, node, 0, 0, NULL);
 				xmlOutputBufferClose(outbuf);
 				RETURN_TRUE;
 			}
@@ -1229,7 +1229,7 @@ SXE_METHOD(asXML)
 				RETURN_FALSE;
 			}
 
-			xmlNodeDumpOutput(outbuf, (xmlDocPtr) sxe->document->ptr, node, 0, 1, ((xmlDocPtr) sxe->document->ptr)->encoding);
+			xmlNodeDumpOutput(outbuf, (xmlDocPtr) sxe->document->ptr, node, 0, 0, ((xmlDocPtr) sxe->document->ptr)->encoding);
 			xmlOutputBufferFlush(outbuf);
 			strval = xmlStrndup(outbuf->buffer->content, outbuf->buffer->use);
 			strval_len = outbuf->buffer->use;