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XSLTProcessor::hasExsltSupport() is a PHP function used to check if the Exslt extension is installed and supported by the PHP server. The Exslt extension provides additional functions to extend XSLT processing capabilities.

To use XSLTProcessor::hasExsltSupport(), you can write the following code:

php
$processor = new XSLTProcessor();
if ($processor->hasExsltSupport()) {
echo 'Exslt extension is supported.';
} else {
echo 'Exslt extension is not supported.';
}


This code creates a new XSLTProcessor object and then uses the hasExsltSupport() method to check if the Exslt extension is supported. If the extension is supported, it will print "Exslt extension is supported.". Otherwise, it will print "Exslt extension is not supported."

Please note that XSLTProcessor::hasExsltSupport() is only available in PHP 5 and later versions.