Merge branch 'PHP-7.0' into PHP-7.1

* PHP-7.0:
  sync NEWS with the reverted stuff
  Revert "fixed bug #50989 (DOM support for LIBXML_NOXMLDECL)"
  Revert "fix BC break introduced by #2346 (sebastianbergmann/phpunit#2454)"

Author: weltling

ext/dom/document.c

@@ -26,7 +26,6 @@
 #include "php.h"
 #if HAVE_LIBXML && HAVE_DOM
 #include "php_dom.h"
-#include <libxml/xmlsave.h>
 #include <libxml/SAX.h>
 #ifdef LIBXML_SCHEMAS_ENABLED
 #include <libxml/relaxng.h>
@@ -1617,54 +1616,59 @@ PHP_FUNCTION(dom_document_savexml)
 	dom_doc_propsptr doc_props;
 	int size, format, saveempty = 0;
 	zend_long options = 0;
-	xmlSaveCtxtPtr xscp;
 
 	if (zend_parse_method_parameters(ZEND_NUM_ARGS(), getThis(), "O|O!l", &id, dom_document_class_entry, &nodep, dom_node_class_entry, &options) == FAILURE) {
 		return;
 	}
-	options = options | XML_SAVE_AS_XML;
 
 	DOM_GET_OBJ(docp, id, xmlDocPtr, intern);
 
 	doc_props = dom_get_doc_props(intern->document);
 	format = doc_props->formatoutput;
-	if (format) {
-		options = options | XML_SAVE_FORMAT;
-	}
 
-	buf = xmlBufferCreate();
-	if (!buf) {
-		php_error_docref(NULL, E_WARNING, "Could not fetch buffer");
-		RETURN_FALSE;
-	}
-	xscp = xmlSaveToBuffer(buf, docp->encoding, options);
-	
 	if (nodep != NULL) {
 		/* Dump contents of Node */
 		DOM_GET_OBJ(node, nodep, xmlNodePtr, nodeobj);
 		if (node->doc != docp) {
 			php_dom_throw_error(WRONG_DOCUMENT_ERR, dom_get_strict_error(intern->document));
-			xmlBufferFree(buf);
 			RETURN_FALSE;
 		}
-		if(xmlSaveTree(xscp, node) < 0) {
-			xmlBufferFree(buf);
+		buf = xmlBufferCreate();
+		if (!buf) {
+			php_error_docref(NULL, E_WARNING, "Could not fetch buffer");
 			RETURN_FALSE;
 		}
-	} else {
-		if(xmlSaveDoc(xscp, docp) < 0) {
+		if (options & LIBXML_SAVE_NOEMPTYTAG) {
+			saveempty = xmlSaveNoEmptyTags;
+			xmlSaveNoEmptyTags = 1;
+		}
+		xmlNodeDump(buf, docp, node, 0, format);
+		if (options & LIBXML_SAVE_NOEMPTYTAG) {
+			xmlSaveNoEmptyTags = saveempty;
+		}
+		mem = (xmlChar*) xmlBufferContent(buf);
+		if (!mem) {
 			xmlBufferFree(buf);
 			RETURN_FALSE;
 		}
-	}
-	xmlSaveClose(xscp);
-	mem = (xmlChar*) xmlBufferContent(buf);
-	if (!mem) {
+		RETVAL_STRING((char *) mem);
 		xmlBufferFree(buf);
-		RETURN_FALSE;
+	} else {
+		if (options & LIBXML_SAVE_NOEMPTYTAG) {
+			saveempty = xmlSaveNoEmptyTags;
+			xmlSaveNoEmptyTags = 1;
+		}
+		/* Encoding is handled from the encoding property set on the document */
+		xmlDocDumpFormatMemory(docp, &mem, &size, format);
+		if (options & LIBXML_SAVE_NOEMPTYTAG) {
+			xmlSaveNoEmptyTags = saveempty;
+		}
+		if (!size || !mem) {
+			RETURN_FALSE;
+		}
+		RETVAL_STRINGL((char *) mem, size);
+		xmlFree(mem);
 	}
-	RETVAL_STRING((char *) mem);
-	xmlBufferFree(buf);
 }
 /* }}} end dom_document_savexml */