PHP

Traverse the XML Tree

See more XML Examples

Demonstrates how to traverse all nodes in an XML tree.

Note: This example requires Chilkat v9.5.0.77 or greater.

Chilkat2 PHP

<?php

use Chilkat2\StringBuilder;
use Chilkat2\Xml;

// Use the NextInTraversal2 method to traverse all nodes in the XML tree rooted at the caller.

$xml = new Xml();

$xml->LoadXmlFile('qa_data/xml/twoPigs.xml');

// This is the XML traversed in this example:

// <pig-rescue>
//   <herd name="Cathy">
//     <species name="pot belly pig">
//         <animal>
//             <name>Molly II</name>
//             <birth>February, 1998</birth>
//             <in-date>January, 2000</in-date>
//             <from>Middle Ave.</from>
//             <gender spay-neuter="yes">F</gender>
//             <info>Molly came from a place where an old, ill man had too many animals.
//                       The animals were seldom fed and rats would eat the newborn piglets.
//                       When Molly was found at one week old, she was the only piglet of
//                       her siblings who did not get stepped on by a cow. She is a sweet,
//                       friendly pig who likes to hang out on Cathy's porch on the lounge
//                       pad.
//             </info>
//         </animal>
//         <animal>
//             <name>Nigel</name>
//             <birth>June, 1991</birth>
//             <in-date>August, 1991</in-date>
//             <from>Breeder</from>
//             <gender spay-neuter="no">M</gender>
//             <info>
//                  Nigel was the first pig and the reason for the rescue in the
//                  first place. He is 13 now and doing well, but takes a number
//                 of medications, as you can see below.
//             </info>
//         </animal>
//     </species>
//   </herd>
// </pig-rescue>

// The sbState is an object used to keep track of the current state of the traversal.
$sbState = new StringBuilder();
while ($xml->NextInTraversal2($sbState)) {
    echo $xml->Tag, "\n";
    echo $xml->TagPath, "\n";
    echo "\n";
}

// Produces the following output:

// herd
// herd
//
// species
// herd|species
//
// animal
// herd|species|animal[0]
//
// name
// herd|species|animal[0]|name
//
// birth
// herd|species|animal[0]|birth
//
// in-date
// herd|species|animal[0]|in-date
//
// from
// herd|species|animal[0]|from
//
// gender
// herd|species|animal[0]|gender
//
// info
// herd|species|animal[0]|info
//
// animal
// herd|species|animal[1]
//
// name
// herd|species|animal[1]|name
//
// birth
// herd|species|animal[1]|birth
//
// in-date
// herd|species|animal[1]|in-date
//
// from
// herd|species|animal[1]|from
//
// gender
// herd|species|animal[1]|gender
//
// info
// herd|species|animal[1]|info
//