1--TEST-- 2SimpleXML: Adding an elements without text 3--EXTENSIONS-- 4simplexml 5--FILE-- 6<?php 7$xml =<<<EOF 8<people></people> 9EOF; 10 11function traverse_xml($xml, $pad = '') 12{ 13 $name = $xml->getName(); 14 echo "$pad<$name"; 15 foreach($xml->attributes() as $attr => $value) 16 { 17 echo " $attr=\"$value\""; 18 } 19 echo ">" . trim($xml) . "\n"; 20 foreach($xml->children() as $node) 21 { 22 traverse_xml($node, $pad.' '); 23 } 24 echo $pad."</$name>\n"; 25} 26 27 28$people = simplexml_load_string($xml); 29traverse_xml($people); 30$people->person['name'] = 'John'; 31traverse_xml($people); 32 33?> 34--EXPECT-- 35<people> 36</people> 37<people> 38 <person name="John"> 39 </person> 40</people> 41