(PHP ActiveX) Benefit of XML Methods Having Names Ending in "2"

The Chilkat XML methods having names ending with "2" update the internal reference rather than return a new XML object instance. See the example below..

Note: There are a few methods, such as LoadXml2, where the "2" simply indicates the method is the same but has an additional argument. (There are some programming environments where overloading methods is not allowed. Therefore, Chilkat will avoid providing methods having the same name but with different arguments.)

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows Note: The php_com_dotnet.dll may need to be enabled inside of php.ini.

<?php

$x = '<test><abc><xyz>123</xyz></abc></test>';

// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Xml')
$xml = new COM("Chilkat.Xml");

$success = $xml->LoadXml($x);

// First demonstrate getting "123" in the simplest way:
print $xml->chilkatPath('abc|xyz|*') . "\n";

// Now demonstrate navigating to the "xyz" node using non-"2" methods.
// The following few lines of code create two object instances, which will need
// to be deleted or garbage collected.
// xAbc is a Chilkat.Xml
$xAbc = $xml->FindChild('abc');
// xXyz is a Chilkat.Xml
$xXyz = $xAbc->FindChild('xyz');
print $xXyz->Content . "\n";

// Now demonstrate navigating to the "xyz" node using the "2" methods.
// No object instances are created.
$success = $xml->FindChild2('abc');
$success = $xml->FindChild2('xyz');
print $xml->Content . "\n";
// Restore xml back to the root of the document.
$xml->GetRoot2();

?>