Imported Upstream version 5.2.4upstream/5.2.4

8 files changed, 219 insertions, 58 deletions

diff --git a/ext/simplexml/simplexml.c b/ext/simplexml/simplexml.c
index 620d31f7b..a4c7b138e 100644
--- a/ext/simplexml/simplexml.c
+++ b/ext/simplexml/simplexml.c
@@ -18,7 +18,7 @@
   +----------------------------------------------------------------------+
 */
 
-/* $Id: simplexml.c,v 1.151.2.22.2.26 2007/04/24 14:11:28 iliaa Exp $ */
+/* $Id: simplexml.c,v 1.151.2.22.2.35 2007/07/31 15:40:49 rrichards Exp $ */
 
 #ifdef HAVE_CONFIG_H
 #include "config.h"
@@ -238,7 +238,7 @@ next_iter:
 
 /* {{{ sxe_prop_dim_read()
  */
-static zval * sxe_prop_dim_read(zval *object, zval *member, zend_bool elements, zend_bool attribs, zend_bool silent TSRMLS_DC)
+static zval * sxe_prop_dim_read(zval *object, zval *member, zend_bool elements, zend_bool attribs, int type TSRMLS_DC)
 {
 	zval           *return_value;
 	php_sxe_object *sxe;
@@ -251,10 +251,14 @@ static zval * sxe_prop_dim_read(zval *object, zval *member, zend_bool elements,
 
 	sxe = php_sxe_fetch_object(object TSRMLS_CC);
 
-	if (Z_TYPE_P(member) == IS_LONG) {
+	if (!member || Z_TYPE_P(member) == IS_LONG) {
 		if (sxe->iter.type != SXE_ITER_ATTRLIST) {
 			attribs = 0;
 			elements = 1;
+		} else if (!member) {
+			/* This happens when the user did: $sxe[]->foo = $value */
+			php_error_docref(NULL TSRMLS_CC, E_ERROR, "Cannot create unnamed attribute");
+			return NULL;
 		}
 		name = NULL;
 	} else {
@@ -267,9 +271,6 @@ static zval * sxe_prop_dim_read(zval *object, zval *member, zend_bool elements,
 		name = Z_STRVAL_P(member);
 	}
 
-	MAKE_STD_ZVAL(return_value);
-	ZVAL_NULL(return_value);
-
 	GET_NODE(sxe, node);
 
 	if (sxe->iter.type == SXE_ITER_ATTRLIST) {
@@ -282,8 +283,17 @@ static zval * sxe_prop_dim_read(zval *object, zval *member, zend_bool elements,
 		node = php_sxe_get_first_node(sxe, node TSRMLS_CC);
 		attr = node ? node->properties : NULL;
 		test = 0;
+		if (!member && node && node->parent &&
+		    node->parent->type == XML_DOCUMENT_NODE) {
+			/* This happens when the user did: $sxe[]->foo = $value */
+			php_error_docref(NULL TSRMLS_CC, E_ERROR, "Cannot create unnamed attribute");
+			return NULL;
+		}
 	}
 
+	MAKE_STD_ZVAL(return_value);
+	ZVAL_NULL(return_value);
+
 	if (node) {
 		if (attribs) {
 			if (Z_TYPE_P(member) != IS_LONG || sxe->iter.type == SXE_ITER_ATTRLIST) {
@@ -314,13 +324,30 @@ static zval * sxe_prop_dim_read(zval *object, zval *member, zend_bool elements,
 			if (!sxe->node) {
 				php_libxml_increment_node_ptr((php_libxml_node_object *)sxe, node, NULL TSRMLS_CC);
 			}
-			if (Z_TYPE_P(member) == IS_LONG) {
+			if (!member || Z_TYPE_P(member) == IS_LONG) {
+				long cnt = 0;
+				xmlNodePtr mynode = node;
+
 				if (sxe->iter.type == SXE_ITER_CHILD) {
 					node = php_sxe_get_first_node(sxe, node TSRMLS_CC);
 				}
-				node = sxe_get_element_by_offset(sxe, Z_LVAL_P(member), node, NULL);
+				if (sxe->iter.type == SXE_ITER_NONE) {
+					if (member && Z_LVAL_P(member) > 0) {
+						php_error_docref(NULL TSRMLS_CC, E_WARNING, "Cannot add element %s number %ld when only 0 such elements exist", mynode->name, Z_LVAL_P(member));
+					}
+				} else if (member) {
+					node = sxe_get_element_by_offset(sxe, Z_LVAL_P(member), node, &cnt);
+				} else {					
+					node = NULL;
+				}
 				if (node) {
 					_node_as_zval(sxe, node, return_value, SXE_ITER_NONE, NULL, sxe->iter.nsprefix, sxe->iter.isprefix TSRMLS_CC);
+				} else if (type == BP_VAR_W || type == BP_VAR_RW) {
+					if (member && cnt < Z_LVAL_P(member)) {
+						php_error_docref(NULL TSRMLS_CC, E_WARNING, "Cannot add element %s number %ld when only %ld such elements exist", mynode->name, Z_LVAL_P(member), cnt);
+					}
+					node = xmlNewTextChild(mynode->parent, mynode->ns, mynode->name, NULL);
+					_node_as_zval(sxe, node, return_value, SXE_ITER_NONE, NULL, sxe->iter.nsprefix, sxe->iter.isprefix TSRMLS_CC);
 				}
 			} else {
 #if SXE_ELEMENT_BY_NAME
@@ -357,7 +384,7 @@ static zval * sxe_prop_dim_read(zval *object, zval *member, zend_bool elements,
  */
 static zval * sxe_property_read(zval *object, zval *member, int type TSRMLS_DC)
 {
-	return sxe_prop_dim_read(object, member, 1, 0, type == BP_VAR_IS TSRMLS_CC);
+	return sxe_prop_dim_read(object, member, 1, 0, type TSRMLS_CC);
 }
 /* }}} */
 
@@ -365,7 +392,7 @@ static zval * sxe_property_read(zval *object, zval *member, int type TSRMLS_DC)
  */
 static zval * sxe_dimension_read(zval *object, zval *offset, int type TSRMLS_DC)
 {
-	return sxe_prop_dim_read(object, offset, 0, 1, 0 TSRMLS_CC);
+	return sxe_prop_dim_read(object, offset, 0, 1, type TSRMLS_CC);
 }
 /* }}} */
 
@@ -425,7 +452,6 @@ static void change_node_zval(xmlNodePtr node, zval *value TSRMLS_DC)
 static void sxe_prop_dim_write(zval *object, zval *member, zval *value, zend_bool elements, zend_bool attribs, xmlNodePtr *pnewnode TSRMLS_DC)
 {
 	php_sxe_object *sxe;
-	char           *name;
 	xmlNodePtr      node;
 	xmlNodePtr      newnode = NULL;
 	xmlNodePtr      mynode;
@@ -439,22 +465,19 @@ static void sxe_prop_dim_write(zval *object, zval *member, zval *value, zend_boo
 	long            cnt = 0;
 	zval            tmp_zv, trim_zv, value_copy;
 
-	if (!member) {
-		/* This happens when the user did: $sxe[] = $value
-		 * and could also be E_PARSE, but we use this only during parsing
-		 * and this is during runtime.
-		 */
-		php_error_docref(NULL TSRMLS_CC, E_ERROR, "Cannot create unnamed attribute");
-		return;
-	}
-
-
 	sxe = php_sxe_fetch_object(object TSRMLS_CC);
 
-	if (Z_TYPE_P(member) == IS_LONG) {
+	if (!member || Z_TYPE_P(member) == IS_LONG) {
 		if (sxe->iter.type != SXE_ITER_ATTRLIST) {
 			attribs = 0;
 			elements = 1;
+		} else if (!member) {
+			/* This happens when the user did: $sxe[] = $value
+			 * and could also be E_PARSE, but we use this only during parsing
+			 * and this is during runtime.
+			 */
+			php_error_docref(NULL TSRMLS_CC, E_ERROR, "Cannot create unnamed attribute");
+			return;
 		}
 	} else {
 		if (Z_TYPE_P(member) != IS_STRING) {
@@ -475,8 +498,6 @@ static void sxe_prop_dim_write(zval *object, zval *member, zval *value, zend_boo
 		}
 	}
 
-	name = Z_STRVAL_P(member);
-
 	GET_NODE(sxe, node);
 
 	if (sxe->iter.type == SXE_ITER_ATTRLIST) {
@@ -490,6 +511,15 @@ static void sxe_prop_dim_write(zval *object, zval *member, zval *value, zend_boo
 		node = php_sxe_get_first_node(sxe, node TSRMLS_CC);
 		attr = node ? node->properties : NULL;
 		test = 0;
+		if (!member && node && node->parent &&
+		    node->parent->type == XML_DOCUMENT_NODE) {
+			/* This happens when the user did: $sxe[] = $value
+			 * and could also be E_PARSE, but we use this only during parsing
+			 * and this is during runtime.
+			 */
+			php_error_docref(NULL TSRMLS_CC, E_ERROR, "Cannot create unnamed attribute");
+			return;
+		}
 		if (attribs && !node && sxe->iter.type == SXE_ITER_ELEMENT) {
 			node = xmlNewChild(mynode, mynode->ns, sxe->iter.name, NULL);
 			attr = node->properties;
@@ -546,7 +576,7 @@ static void sxe_prop_dim_write(zval *object, zval *member, zval *value, zend_boo
 				}
 			} else {
 				while (attr) {
-					if ((!test || !xmlStrcmp(attr->name, sxe->iter.name)) && !xmlStrcmp(attr->name, (xmlChar *)name) && match_ns(sxe, (xmlNodePtr) attr, sxe->iter.nsprefix, sxe->iter.isprefix)) {
+					if ((!test || !xmlStrcmp(attr->name, sxe->iter.name)) && !xmlStrcmp(attr->name, (xmlChar *)Z_STRVAL_P(member)) && match_ns(sxe, (xmlNodePtr) attr, sxe->iter.nsprefix, sxe->iter.isprefix)) {
 						is_attr = 1;
 						++counter;
 						break;
@@ -558,17 +588,30 @@ static void sxe_prop_dim_write(zval *object, zval *member, zval *value, zend_boo
 		}
 
 		if (elements) {
-			if (Z_TYPE_P(member) == IS_LONG) {
-				newnode = sxe_get_element_by_offset(sxe, Z_LVAL_P(member), node, &cnt);
-				if (newnode) {
+			if (!member || Z_TYPE_P(member) == IS_LONG) {
+				if (node->type == XML_ATTRIBUTE_NODE) {
+					php_error_docref(NULL TSRMLS_CC, E_ERROR, "Cannot create duplicate attribute");
+					return;
+				}
+
+				if (sxe->iter.type == SXE_ITER_NONE) {
+					newnode = node;
 					++counter;
+					if (member && Z_LVAL_P(member) > 0) {
+						php_error_docref(NULL TSRMLS_CC, E_WARNING, "Cannot add element %s number %ld when only 0 such elements exist", mynode->name, Z_LVAL_P(member));
+					}
+				} else if (member) {
+					newnode = sxe_get_element_by_offset(sxe, Z_LVAL_P(member), node, &cnt);
+					if (newnode) {
+						++counter;
+					}
 				}
 			} else {
 				node = node->children;
 				while (node) {
 					SKIP_TEXT(node);
 
-					if (!xmlStrcmp(node->name, (xmlChar *)name)) {
+					if (!xmlStrcmp(node->name, (xmlChar *)Z_STRVAL_P(member))) {
 						newnode = node;
 						++counter;
 					}
@@ -594,15 +637,23 @@ next_iter:
 			php_error_docref(NULL TSRMLS_CC, E_WARNING, "Cannot assign to an array of nodes (duplicate subnodes or attr detected)");
 		} else if (elements) {
 			if (!node) {
-				newnode = xmlNewTextChild(mynode, mynode->ns, (xmlChar *)name, value ? (xmlChar *)Z_STRVAL_P(value) : NULL);
-			} else if (Z_TYPE_P(member) == IS_LONG) {
-				if (cnt < Z_LVAL_P(member)) {
+				if (!member || Z_TYPE_P(member) == IS_LONG) {
+					newnode = xmlNewTextChild(mynode->parent, mynode->ns, mynode->name, value ? (xmlChar *)Z_STRVAL_P(value) : NULL);
+				} else {				
+					newnode = xmlNewTextChild(mynode, mynode->ns, (xmlChar *)Z_STRVAL_P(member), value ? (xmlChar *)Z_STRVAL_P(value) : NULL);
+				}
+			} else if (!member || Z_TYPE_P(member) == IS_LONG) {
+				if (member && cnt < Z_LVAL_P(member)) {
 					php_error_docref(NULL TSRMLS_CC, E_WARNING, "Cannot add element %s number %ld when only %ld such elements exist", mynode->name, Z_LVAL_P(member), cnt);
 				}
 				newnode = xmlNewTextChild(mynode->parent, mynode->ns, mynode->name, value ? (xmlChar *)Z_STRVAL_P(value) : NULL);
 			}
 		} else if (attribs) {
-			newnode = (xmlNodePtr)xmlNewProp(node, (xmlChar *)name, value ? (xmlChar *)Z_STRVAL_P(value) : NULL);
+			if (Z_TYPE_P(member) == IS_LONG) {
+				php_error_docref(NULL TSRMLS_CC, E_WARNING, "Cannot change attribute number %ld when only %d attributes exist", Z_LVAL_P(member), nodendx);
+			} else {
+				newnode = (xmlNodePtr)xmlNewProp(node, (xmlChar *)Z_STRVAL_P(member), value ? (xmlChar *)Z_STRVAL_P(value) : NULL);
+			}
 		}
 	}
 
@@ -736,6 +787,11 @@ static int sxe_prop_dim_exists(zval *object, zval *member, int check_empty, zend
 					attr = attr->next;
 				}
 			}
+			if (exists && check_empty == 1 &&
+				(!attr->children || !attr->children->content || !attr->children->content[0] || !xmlStrcmp(attr->children->content, "0")) ) {
+				/* Attribute with no content in it's text node */
+				exists = 0;
+			}
 		}
 
 		if (elements) {
@@ -758,6 +814,11 @@ static int sxe_prop_dim_exists(zval *object, zval *member, int check_empty, zend
 			}
 			if (node) {
 				exists = 1;
+                                if (check_empty == 1 && 
+					(!node->children || (node->children->type == XML_TEXT_NODE && !node->children->next &&
+						(!node->children->content || !node->children->content[0] || !xmlStrcmp(node->children->content, "0")))) ) {
+					exists = 0;
+				}
 			}
 		}
 	}
@@ -1345,15 +1406,12 @@ SXE_METHOD(getNamespaces)
 	GET_NODE(sxe, node);
 	node = php_sxe_get_first_node(sxe, node TSRMLS_CC);
 
-	while (node) {
-		SKIP_TEXT(node)
+	if (node) {
 		if (node->type == XML_ELEMENT_NODE) {
 			sxe_add_namespaces(sxe, node, recursive, return_value TSRMLS_CC);
 		} else if (node->type == XML_ATTRIBUTE_NODE && node->ns) {
 			sxe_add_namespace_name(return_value, node->ns);
 		}
-next_iter:
-		node = node->next;
 	}
 }
 /* }}} */
@@ -1437,9 +1495,13 @@ SXE_METHOD(getName)
 	sxe = php_sxe_fetch_object(getThis() TSRMLS_CC);
 
 	GET_NODE(sxe, node);
-	
-	namelen = xmlStrlen(node->name);
-	RETURN_STRINGL((char*)node->name, namelen, 1);
+	node = php_sxe_get_first_node(sxe, node TSRMLS_CC);
+	if (node) {
+		namelen = xmlStrlen(node->name);
+		RETURN_STRINGL((char*)node->name, namelen, 1);
+	} else {
+		RETURN_EMPTY_STRING();
+	}
 }
 /* }}} */
 
@@ -1501,6 +1563,11 @@ SXE_METHOD(addChild)
 
 	node = php_sxe_get_first_node(sxe, node TSRMLS_CC);
 
+	if (node == NULL) {
+		php_error_docref(NULL TSRMLS_CC, E_WARNING, "Cannot add child. Parent is not a permanent member of the XML tree");
+		return;	
+	}
+
 	localname = xmlSplitQName2((xmlChar *)qname, &prefix);
 	if (localname == NULL) {
 		localname = xmlStrdup((xmlChar *)qname);
@@ -1509,11 +1576,16 @@ SXE_METHOD(addChild)
 	newnode = xmlNewChild(node, NULL, localname, (xmlChar *)value);
 
 	if (nsuri != NULL) {
-		nsptr = xmlSearchNsByHref(node->doc, node, (xmlChar *)nsuri);
-		if (nsptr == NULL) {
+		if (nsuri_len == 0) {
+			newnode->ns = NULL;
 			nsptr = xmlNewNs(newnode, (xmlChar *)nsuri, prefix);
+		} else {
+			nsptr = xmlSearchNsByHref(node->doc, node, (xmlChar *)nsuri);
+			if (nsptr == NULL) {
+				nsptr = xmlNewNs(newnode, (xmlChar *)nsuri, prefix);
+			}
+			newnode->ns = nsptr;
 		}
-		newnode->ns = nsptr;
 	}
 
 	_node_as_zval(sxe, newnode, return_value, SXE_ITER_NONE, (char *)localname, prefix, 0 TSRMLS_CC);
@@ -2368,7 +2440,7 @@ PHP_MINFO_FUNCTION(simplexml)
 {
 	php_info_print_table_start();
 	php_info_print_table_header(2, "Simplexml support", "enabled");
-	php_info_print_table_row(2, "Revision", "$Revision: 1.151.2.22.2.26 $");
+	php_info_print_table_row(2, "Revision", "$Revision: 1.151.2.22.2.35 $");
 	php_info_print_table_row(2, "Schema support",
 #ifdef LIBXML_SCHEMAS_ENABLED
 		"enabled");
diff --git a/ext/simplexml/tests/027.phpt b/ext/simplexml/tests/027.phpt
index 105f99066..a531ccad4 100755
--- a/ext/simplexml/tests/027.phpt
+++ b/ext/simplexml/tests/027.phpt
@@ -40,7 +40,7 @@ $people->person[3] = 'Minni-me';
 $people->person[2]['gender'] = 'male';
 traverse_xml($people);
 $people->person[3]['gender'] = 'error';
-
+traverse_xml($people);
 ?>
 ===DONE===
 --EXPECTF--
@@ -70,6 +70,14 @@ Warning: main(): Cannot add element person number 3 when only 2 such elements ex
   <person gender="male">Minni-me
   </person>
 </people>
-
-Notice: Indirect modification of overloaded element of SimpleXMLElement has no effect in %s027.php on line %d
+<people>
+  <person gender="female">Jane
+  </person>
+  <person gender="male">Joe
+  </person>
+  <person gender="male">Minni-me
+  </person>
+  <person gender="error">
+  </person>
+</people>
 ===DONE===
diff --git a/ext/simplexml/tests/bug35785.phpt b/ext/simplexml/tests/bug35785.phpt
index 4156a7c9f..0e03f07c5 100755
--- a/ext/simplexml/tests/bug35785.phpt
+++ b/ext/simplexml/tests/bug35785.phpt
@@ -8,13 +8,13 @@ Bug #35785 (SimpleXML memory read error)
 $xml = simplexml_load_string("<root></root>");
 $xml->bla->posts->name = "FooBar";
 echo $xml->asXML();
-
-echo "===FAIL===\n";
-
 $xml = simplexml_load_string("<root></root>");
 $count = count($xml->bla->posts);
 var_dump($count);
-$xml->bla->posts[++$count]->name = "FooBar";
+$xml->bla->posts[$count]->name = "FooBar";
+echo $xml->asXML();
+$xml = simplexml_load_string("<root></root>");
+$xml->bla->posts[]->name = "FooBar";
 echo $xml->asXML();
 ?>
 ===DONE===
@@ -22,12 +22,9 @@ echo $xml->asXML();
 --EXPECTF--
 <?xml version="1.0"?>
 <root><bla><posts><name>FooBar</name></posts></bla></root>
-===FAIL===
 int(0)
-
-Notice: Indirect modification of overloaded element of SimpleXMLElement has no effect in %sbug35785.php on line %d
-
-Strict Standards: Creating default object from empty value in %sbug35785.php on line %d
 <?xml version="1.0"?>
-<root><bla><posts/></bla></root>
+<root><bla><posts><name>FooBar</name></posts></bla></root>
+<?xml version="1.0"?>
+<root><bla><posts><name>FooBar</name></posts></bla></root>
 ===DONE===
diff --git a/ext/simplexml/tests/bug37565.phpt b/ext/simplexml/tests/bug37565.phpt
index 019fc7169..c1e51040b 100755
--- a/ext/simplexml/tests/bug37565.phpt
+++ b/ext/simplexml/tests/bug37565.phpt
@@ -1,7 +1,7 @@
 --TEST--
 Bug #37565 (Using reflection::export with simplexml causing a crash)
 --SKIPIF--
-<?php if (!extension_loaded("simplexml")) print "skip"; ?>
+<?php if (!extension_loaded("simplexml") || !extension_loaded('reflection')) print "skip"; ?>
 --FILE--
 <?php
 
diff --git a/ext/simplexml/tests/bug41582.phpt b/ext/simplexml/tests/bug41582.phpt
new file mode 100644
index 000000000..b689607d0
--- /dev/null
+++ b/ext/simplexml/tests/bug41582.phpt
@@ -0,0 +1,18 @@
+--TEST--
+Bug #41582 (SimpleXML crashes when accessing newly created element)
+--FILE--
+<?php
+
+$xml = new SimpleXMLElement('<?xml version="1.0" standalone="yes"?>
+<collection></collection>');
+
+$xml->movie[]->characters->character[0]->name = 'Miss Coder';
+
+echo($xml->asXml());
+
+echo "Done\n";
+?>
+--EXPECT--
+<?xml version="1.0" standalone="yes"?>
+<collection><movie><characters><character><name>Miss Coder</name></character></characters></movie></collection>
+Done
diff --git a/ext/simplexml/tests/bug41861.phpt b/ext/simplexml/tests/bug41861.phpt
new file mode 100644
index 000000000..07622ebbd
--- /dev/null
+++ b/ext/simplexml/tests/bug41861.phpt
@@ -0,0 +1,38 @@
+--TEST--
+Bug #41861 (getNamespaces() returns the namespaces of a node's siblings)
+--FILE--
+<?php
+
+$xml = simplexml_load_string('<root>
+	<first_node_no_ns />
+	<ns1:node1 xmlns:ns1="#ns1" />
+	<ns2:node2 xmlns:ns2="#ns2" />
+	<ns3:node3 xmlns:ns3="#ns3" />
+	<last_node_no_ns />
+</root>');
+
+$name = $xml->getName();
+$namespaces = $xml->getNamespaces(True);
+echo "root(recursive): '$name' -- namespaces: ", implode(', ', $namespaces), "\n";
+$namespaces = $xml->getNamespaces(False);
+echo "root(non-recursive): '$name' -- namespaces: ", implode(', ', $namespaces), "\n";
+
+foreach (array(null, '#ns1', '#ns2', '#ns3') as $ns)
+{
+	foreach ($xml->children($ns) as $child)
+	{
+		$name = $child->getName();
+		$namespaces = $child->getNamespaces(false);
+
+		echo "children($ns): '$name' -- namespaces: ", implode(', ', $namespaces), "\n";
+	}
+}
+?>
+--EXPECT--
+root(recursive): 'root' -- namespaces: #ns1, #ns2, #ns3
+root(non-recursive): 'root' -- namespaces: 
+children(): 'first_node_no_ns' -- namespaces: 
+children(): 'last_node_no_ns' -- namespaces: 
+children(#ns1): 'node1' -- namespaces: #ns1
+children(#ns2): 'node2' -- namespaces: #ns2
+children(#ns3): 'node3' -- namespaces: #ns3
diff --git a/ext/simplexml/tests/bug41867.phpt b/ext/simplexml/tests/bug41867.phpt
new file mode 100644
index 000000000..f530f95dc
--- /dev/null
+++ b/ext/simplexml/tests/bug41867.phpt
@@ -0,0 +1,14 @@
+--TEST--
+Bug #41867 (getName is broken)
+--FILE--
+<?php
+
+$a = simplexml_load_string("<a><b><c/></b></a>");
+echo $a->getName()."\n";
+echo $a->b->getName()."\n";
+echo $a->b->c->getName();
+?>
+--EXPECT--
+a
+b
+c
diff --git a/ext/simplexml/tests/bug41947.phpt b/ext/simplexml/tests/bug41947.phpt
new file mode 100644
index 000000000..7af9ff8e7
--- /dev/null
+++ b/ext/simplexml/tests/bug41947.phpt
@@ -0,0 +1,14 @@
+--TEST--
+Bug #41947 (addChild incorrectly registers empty strings as namespaces)
+--FILE--
+<?php
+$xml = simplexml_load_string('<?xml version="1.0" encoding="utf-8"?><root xmlns:myns="http://myns" />');
+$grandchild = $xml->addChild('child', null, 'http://myns')->addChild('grandchild', 'hello', '');
+
+$gchild = $xml->xpath("//grandchild");
+if (count($gchild) > 0) {
+    echo $gchild[0];
+}
+?>
+--EXPECT--
+hello