two new methods were added

$node->count($subnode_name) - returns count of subnodes with specified name
  $node->attributes() - returns array of attributes

ext/simplexml/simplexml.c

@@ -930,6 +930,69 @@ SXE_METHOD(to_xml_file)
 }
 /* }}} */
 
+/* {{{ simplexml_count()
+ */
+SXE_METHOD(count)
+{
+	char       *name;
+	int         name_len;
+	HashTable  *subnodes;
+	zval      **data_ptr;
+
+	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &name, &name_len) == FAILURE) {
+		return;
+	}
+	subnodes = sxe_properties_get(getThis() TSRMLS_CC);
+	if (zend_hash_find(subnodes, name, name_len+1, (void **) &data_ptr) == SUCCESS) {
+		if (Z_TYPE_PP(data_ptr) == IS_ARRAY) {
+		  RETURN_LONG(zend_hash_num_elements(Z_ARRVAL_PP(data_ptr)));
+		} else {
+			RETURN_LONG(1);
+		}
+	} else {
+		RETURN_LONG(0);
+	}
+}
+/* }}} */
+
+/* {{{ simplexml_attributes()
+ */
+SXE_METHOD(attributes)
+{
+	php_sxe_object *sxe;
+	xmlNodePtr      node;
+	xmlAttrPtr      attr;
+	zval           *value = NULL;
+	char           *contents;
+
+	if (ZEND_NUM_ARGS() != 0) {
+		RETURN_FALSE;
+	}
+
+	sxe = php_sxe_fetch_object(getThis() TSRMLS_CC);
+	GET_NODE(sxe, node);
+
+	array_init(return_value);
+	if (node) {
+		attr = node->properties;
+		while (attr) {
+			if (attr->name) {
+				MAKE_STD_ZVAL(value);
+				contents = xmlNodeListGetString((xmlDocPtr) sxe->document->ptr, attr->children, 1);
+				ZVAL_STRING(value, contents, 1);
+				if (contents) {
+					xmlFree(contents);
+				}
+				add_assoc_zval_ex(return_value,
+					(char*)attr->name,
+					xmlStrlen(attr->name) + 1, value);
+			}
+			attr = attr->next;
+		}
+	}
+}
+/* }}} */
+
 /* {{{ cast_object()
  */
 static int
@@ -1536,6 +1599,8 @@ static zend_function_entry sxe_functions[] = {
 	SXE_ME(next,                   NULL, ZEND_ACC_PUBLIC)
 	SXE_ME(hasChildren,            NULL, ZEND_ACC_PUBLIC)
 	SXE_ME(getChildren,            NULL, ZEND_ACC_PUBLIC)
+	SXE_ME(count,                  NULL, ZEND_ACC_PUBLIC)
+	SXE_ME(attributes,             NULL, ZEND_ACC_PUBLIC)
 	{NULL, NULL, NULL}
 };
 

ext/simplexml/tests/017.phpt

@@ -0,0 +1,76 @@
+--TEST--
+SimpleXML: iteration through subnodes
+--SKIPIF--
+<?php if (!extension_loaded("simplexml")) print "skip"; ?>
+--FILE--
+<?php
+$xml =<<<EOF
+<people>
+   <person name="Joe">
+     <child name="Ann" />
+     <child name="Marray" />
+   </person>
+   <person name="Boe">
+     <child name="Joe" />
+     <child name="Ann" />
+   </person>
+</people>
+EOF;
+$xml1 =<<<EOF
+<people>
+   <person name="Joe">
+     <child name="Ann" />
+   </person>
+</people>
+EOF;
+
+function print_xml($xml) {
+  foreach($xml as $person) {
+    echo "person: ".$person['name']."\n";
+    foreach($person as $child) {
+      echo "  child: ".$child['name']."\n";
+    }
+  }
+  echo "----------\n";
+}
+
+function print_xml2($xml) {
+  $persons = $xml->count("person");
+  for ($i=0;$i<$persons;$i++) {
+    echo "person: ".$xml->person[$i]['name']."\n";
+    $children = $xml->person[$i]->count("child");
+    for ($j=0;$j<$children;$j++) {
+      echo "  child: ".$xml->person[$i]->child[$j]['name']."\n";
+    }
+  }
+  echo "----------\n";
+}
+
+print_xml(simplexml_load_string($xml));
+print_xml(simplexml_load_string($xml1));
+print_xml2(simplexml_load_string($xml));
+print_xml2(simplexml_load_string($xml1));
+echo "---Done---\n";
+?>
+--EXPECT--
+person: Joe
+  child: Ann
+  child: Marray
+person: Boe
+  child: Joe
+  child: Ann
+----------
+person: Joe
+  child: Ann
+----------
+person: Joe
+  child: Ann
+  child: Marray
+person: Boe
+  child: Joe
+  child: Ann
+----------
+person: Joe
+  child: Ann
+----------
+---Done---

ext/simplexml/tests/018.phpt

@@ -0,0 +1,65 @@
+--TEST--
+SimpleXML: iteration through subnodes and attributes
+--SKIPIF--
+<?php if (!extension_loaded("simplexml")) print "skip"; ?>
+--FILE--
+<?php 
+$xml =<<<EOF
+<people>
+   <person name="Joe">
+     Text1
+     <child name="Ann" />
+     Text2
+     <child name="Marray" />
+     Text3
+   </person>
+   <person name="Boe">
+     <child name="Joe" />
+     <child name="Ann" />
+   </person>
+</people>
+EOF;
+$xml1 =<<<EOF
+<people>
+   <person name="Joe">
+     <child />
+   </person>
+</people>
+EOF;
+
+function traverse_xml($pad,$xml) {
+  foreach($xml as $name => $node) {
+    echo $pad."<$name";
+    foreach($node->attributes() as $attr => $value) {
+      echo " $attr=\"$value\"";
+    }
+    echo ">\n";
+    traverse_xml($pad."  ",$node);
+    echo $pad."</$name>\n";
+  }
+}
+
+traverse_xml("",simplexml_load_string($xml));
+echo "----------\n";
+traverse_xml("",simplexml_load_string($xml1));
+echo "---Done---\n";
+?>
+--EXPECT--
+<person name="Joe">
+  <child name="Ann">
+  </child>
+  <child name="Marray">
+  </child>
+</person>
+<person name="Boe">
+  <child name="Joe">
+  </child>
+  <child name="Ann">
+  </child>
+</person>
+----------
+<person name="Joe">
+  <child>
+  </child>
+</person>
+---Done---