1--TEST-- 2Test 6: Extends Test 3--EXTENSIONS-- 4dom 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?> 30--EXPECT-- 31<?xml version="1.0"?> 32<books> 33 <book> 34 <title>The Grapes of Wrath</title> 35 <author>John Steinbeck</author> 36 </book> 37 <book> 38 <title>The Pearl</title> 39 <author>John Steinbeck</author> 40 </book> 41<book><title>PHP de Luxe</title><author>Richard Samar, Christian Stocker</author></book></books> 42
