1--TEST-- 2Test 6: Extends Test 3--SKIPIF-- 4<?php require_once('skipif.inc'); ?> 5--FILE-- 6<?php 7 8Class books extends domDocument { 9 function addBook($title, $author) { 10 $titleElement = $this->createElement("title"); 11 $titleElement->appendChild($this->createTextNode($title)); 12 $authorElement = $this->createElement("author"); 13 $authorElement->appendChild($this->createTextNode($author)); 14 15 $bookElement = $this->createElement("book"); 16 17 $bookElement->appendChild($titleElement); 18 $bookElement->appendChild($authorElement); 19 $this->documentElement->appendChild($bookElement); 20 } 21 22} 23 24$dom = new books; 25 26$dom->load(__DIR__."/book.xml"); 27$dom->addBook("PHP de Luxe", "Richard Samar, Christian Stocker"); 28print $dom->saveXML(); 29--EXPECT-- 30<?xml version="1.0"?> 31<books> 32 <book> 33 <title>The Grapes of Wrath</title> 34 <author>John Steinbeck</author> 35 </book> 36 <book> 37 <title>The Pearl</title> 38 <author>John Steinbeck</author> 39 </book> 40<book><title>PHP de Luxe</title><author>Richard Samar, Christian Stocker</author></book></books> 41