Search for an element with a certain id in PHP
Description
The following code shows how to search for an element with a certain id.
Example
/*from w w w . ja va 2s. co m*/
<?php
$doc = new DomDocument;
// We need to validate our document before refering to the id
$doc->validateOnParse = true;
$doc->Load('test.xml');
echo "The element whose id is 'php-basics' is: " . $doc->getElementById('php-basics')->tagName . "\n";
?>
The following code is for test.xml.
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE books [/*from ww w. ja v a 2s . co m*/
<!ELEMENT books (book+)>
<!ELEMENT book (title, author+, xhtml:blurb?)>
<!ELEMENT title (#PCDATA)>
<!ELEMENT blurb (#PCDATA)>
<!ELEMENT author (#PCDATA)>
<!ATTLIST books xmlns CDATA #IMPLIED>
<!ATTLIST books xmlns:xhtml CDATA #IMPLIED>
<!ATTLIST book id ID #IMPLIED>
<!ATTLIST author email CDATA #IMPLIED>
]>
<?xml-stylesheet type="text/xsl" href="style.xsl"?>
<books xmlns="http://java2s.com/" xmlns:xhtml="http://www.w3.org/1999/xhtml">
<book id="php-basics">
<title>PHP Basics</title>
<author email="t@no.com">Tom</author>
<author email="j@no.com">Jack</author>
<xhtml:blurb>PHP Basics</xhtml:blurb>
</book>
<book id="php-advanced">
<title>PHP Programming</title>
<author email="j@no.php">Jack</author>
</book>
</books>
The code above generates the following result.
