ext/dom: Add global registerNodeNS flag on DOMXPath ctor and property.

ext/dom/dom_properties.h

@@ -128,6 +128,8 @@ int dom_text_whole_text_read(dom_object *obj, zval *retval);
 #if defined(LIBXML_XPATH_ENABLED)
 /* xpath properties */
 int dom_xpath_document_read(dom_object *obj, zval *retval);
+int dom_xpath_register_node_ns_read(dom_object *obj, zval *retval);
+int dom_xpath_register_node_ns_write(dom_object *obj, zval *newval);
 #endif
 
 #endif /* DOM_PROPERTIERS_H */

ext/dom/php_dom.c

@@ -768,6 +768,7 @@ PHP_MINIT_FUNCTION(dom)
 
 	zend_hash_init(&dom_xpath_prop_handlers, 0, NULL, dom_dtor_prop_handler, 1);
 	dom_register_prop_handler(&dom_xpath_prop_handlers, "document", sizeof("document")-1, dom_xpath_document_read, NULL);
+	dom_register_prop_handler(&dom_xpath_prop_handlers, "registerNodeNamespaces", sizeof("registerNodeNamespaces")-1, dom_xpath_register_node_ns_read, dom_xpath_register_node_ns_write);
 	zend_hash_add_ptr(&classes, ce.name, &dom_xpath_prop_handlers);
 #endif
 
@@ -1017,6 +1018,7 @@ zend_object *dom_xpath_objects_new(zend_class_entry *class_type)
 	dom_xpath_object *intern = zend_object_alloc(sizeof(dom_xpath_object), class_type);
 
 	intern->registered_phpfunctions = zend_new_array(0);
+	intern->register_node_ns = 1;
 
 	intern->dom.prop_handler = &dom_xpath_prop_handlers;
 	intern->dom.std.handlers = &dom_xpath_object_handlers;

ext/dom/php_dom.h

@@ -65,6 +65,7 @@ extern zend_module_entry dom_module_entry;
 
 typedef struct _dom_xpath_object {
 	int registerPhpFunctions;
+	int register_node_ns;
 	HashTable *registered_phpfunctions;
 	HashTable *node_list;
 	dom_object dom;

ext/dom/tests/bug55700.phpt

@@ -0,0 +1,40 @@
+--TEST--
+Bug #55700 (XPath namespace prefix conflict, global registerNodeNS flag)
+--SKIPIF--
+<?php require_once('skipif.inc'); ?>
+--FILE--
+<?php
+$doc = new DOMDocument();
+$doc->loadXML('<prefix:root xmlns:prefix="urn:a" />');
+
+$xp = new DOMXPath($doc, true);
+$xp->registerNamespace('prefix', 'urn:b');
+
+echo($xp->query('//prefix:root')->length . "\n");
+
+$xp = new DOMXPath($doc, false);
+$xp->registerNamespace('prefix', 'urn:b');
+
+echo($xp->query('//prefix:root')->length . "\n");
+
+var_dump($xp->registerNodeNamespaces);
+$xp->registerNodeNamespaces = true;
+
+var_dump($xp->registerNodeNamespaces);
+
+echo($xp->query('//prefix:root')->length . "\n");
+
+var_dump($xp);
+?>
+--EXPECT--
+1
+0
+bool(false)
+bool(true)
+1
+object(DOMXPath)#4 (2) {
+  ["document"]=>
+  string(22) "(object value omitted)"
+  ["registerNodeNamespaces"]=>
+  bool(true)
+}

ext/dom/xpath.c

@@ -35,6 +35,7 @@
 /* {{{ arginfo */
 ZEND_BEGIN_ARG_INFO_EX(arginfo_dom_xpath_construct, 0, 0, 1)
 	ZEND_ARG_OBJ_INFO(0, doc, DOMDocument, 0)
+	ZEND_ARG_INFO(0, registerNodeNS)
 ZEND_END_ARG_INFO();
 
 ZEND_BEGIN_ARG_INFO_EX(arginfo_dom_xpath_register_ns, 0, 0, 2)
@@ -249,12 +250,13 @@ static void dom_xpath_ext_function_object_php(xmlXPathParserContextPtr ctxt, int
 PHP_METHOD(domxpath, __construct)
 {
 	zval *doc;
+	zend_bool register_node_ns = 1;
 	xmlDocPtr docp = NULL;
 	dom_object *docobj;
 	dom_xpath_object *intern;
 	xmlXPathContextPtr ctx, oldctx;
 
-	if (zend_parse_parameters_throw(ZEND_NUM_ARGS(), "O", &doc, dom_document_class_entry) == FAILURE) {
+	if (zend_parse_parameters_throw(ZEND_NUM_ARGS(), "O|b", &doc, dom_document_class_entry, &register_node_ns) == FAILURE) {
 		return;
 	}
 
@@ -284,6 +286,7 @@ PHP_METHOD(domxpath, __construct)
 		intern->dom.ptr = ctx;
 		ctx->userData = (void *)intern;
 		intern->dom.document = docobj->document;
+		intern->register_node_ns = register_node_ns;
 		php_libxml_increment_doc_ref((php_libxml_node_object *) &intern->dom, docp);
 	}
 }
@@ -304,6 +307,26 @@ int dom_xpath_document_read(dom_object *obj, zval *retval)
 }
 /* }}} */
 
+/* {{{ registerNodeNamespaces bool*/
+static inline dom_xpath_object *php_xpath_obj_from_dom_obj(dom_object *obj) {
+	return (dom_xpath_object*)((char*)(obj) - XtOffsetOf(dom_xpath_object, dom));
+}
+
+int dom_xpath_register_node_ns_read(dom_object *obj, zval *retval)
+{
+	ZVAL_BOOL(retval, php_xpath_obj_from_dom_obj(obj)->register_node_ns);
+
+	return SUCCESS;
+}
+
+int dom_xpath_register_node_ns_write(dom_object *obj, zval *newval)
+{
+	php_xpath_obj_from_dom_obj(obj)->register_node_ns = zend_is_true(newval);
+
+	return SUCCESS;
+}
+/* }}} */
+
 /* {{{ proto bool dom_xpath_register_ns(string prefix, string uri) */
 PHP_FUNCTION(dom_xpath_register_ns)
 {
@@ -354,15 +377,16 @@ static void php_xpath_eval(INTERNAL_FUNCTION_PARAMETERS, int type) /* {{{ */
 	char *expr;
 	xmlDoc *docp = NULL;
 	xmlNsPtr *ns = NULL;
-	zend_bool register_node_ns = 1;
+	zend_bool register_node_ns;
 
 	id = ZEND_THIS;
+	intern = Z_XPATHOBJ_P(id);
+	register_node_ns = intern->register_node_ns;
+
 	if (zend_parse_parameters(ZEND_NUM_ARGS(), "s|O!b", &expr, &expr_len, &context, dom_node_class_entry, &register_node_ns) == FAILURE) {
 		return;
 	}
 
-	intern = Z_XPATHOBJ_P(id);
-
 	ctxp = (xmlXPathContextPtr) intern->dom.ptr;
 	if (ctxp == NULL) {
 		php_error_docref(NULL, E_WARNING, "Invalid XPath Context");