PHP

Get XML Attribute Value by Path

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Demonstrates how to get an attribute value by path. Chilkat2 PHP

<?php

use Chilkat2\Xml;

// The XML used in this example contains the following:
// This example will get the value of the "spay-neuter" attribute for each pig.

// <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>

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

// Use the ChilkatPath method to return the value of a particular attribute at a given path.
// A path ending with "(attributeName)" will return the value for the given attribute.
$path = 'herd|species|animal[0]|gender|(spay-neuter)';
$attrValue = $xml->ChilkatPath($path);
echo '1st pig spay-neuter: ', $attrValue, "\n";

$path = 'herd|species|animal[1]|gender|(spay-neuter)';
$attrValue = $xml->ChilkatPath($path);
echo '2nd pig spay-neuter: ', $attrValue, "\n";

// We could also do it like this:
$path = 'herd|species|animal[i]|gender|(spay-neuter)';
$i = 0;
while ($i < $xml->NumChildrenAt('herd|species')) {
    $xml->I = $i;
    echo 'spay-neuter for pig number ', $i + 1, ': ', $xml->ChilkatPath($path), "\n";
    $i = $i + 1;
}