1--TEST-- 2SimpleXML: adding/removing attributes (direct) 3--EXTENSIONS-- 4simplexml 5--FILE-- 6<?php 7$xml =<<<EOF 8<people> 9 <person name="Joe"></person> 10</people> 11EOF; 12 13$people = simplexml_load_string($xml); 14var_dump($people->person['name']); 15var_dump($people->person['age']); 16$person = $people->person; 17$person['name'] = "XXX"; 18var_dump($people->person['name']); 19$people->person['age'] = 30; 20var_dump($people->person['age']); 21echo "---Unset:---\n"; 22unset($people->person['age']); 23echo "---Unset?---\n"; 24var_dump($people->person['age']); 25var_dump(isset($people->person['age'])); 26$people->person['age'] = 30; 27echo "---Unsupported---\n"; 28var_dump($people->person['age']); 29$people->person['age'] += 5; 30var_dump($people->person['age']); 31?> 32--EXPECTF-- 33object(SimpleXMLElement)#%d (1) { 34 [0]=> 35 string(3) "Joe" 36} 37NULL 38object(SimpleXMLElement)#%d (1) { 39 [0]=> 40 string(3) "XXX" 41} 42object(SimpleXMLElement)#%d (1) { 43 [0]=> 44 string(2) "30" 45} 46---Unset:--- 47---Unset?--- 48NULL 49bool(false) 50---Unsupported--- 51object(SimpleXMLElement)#%d (1) { 52 [0]=> 53 string(2) "30" 54} 55object(SimpleXMLElement)#%d (1) { 56 [0]=> 57 string(2) "35" 58} 59