Online PHP editor | output for uuU6t

@ 2013-12-03T08:14:21Z

<?php
$rawxml = '<?xml version="1.0"?><root><field attr1="val1"><field attr1="val1"/></field></root>';
$rawxpath = "/root[1]/field[@attr1='val1']";

$results = array();
for ($i = 0; $i < 10000; $i++) {
        $xmlDocument = new DOMDocument();
        $xmlDocument->loadXML($rawxml);
        $xp = new DOMXPath($xmlDocument);
        $xpr = $xp->evaluate($rawxpath, $xmlDocument->documentElement);

        if (isset($results[(string) $xpr->length]))
                $results[(string) $xpr->length]++;
        else
                $results[(string) $xpr->length] = 1;
}

foreach ($results as $matches => $count)
        printf("In %5d instances, found $matches match(es) for $rawxpath\n", $count);

Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7: In 10000 instances, found 1 match(es) for /root[1]/field[@attr1='val1']
Output for 5.0.0 - 5.0.5: Fatal error: Call to undefined method DOMXPath::evaluate() in /in/uuU6t on line 10
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9: Fatal error: Cannot instantiate non-existent class: domdocument in /in/uuU6t on line 7
Process exited with code 255.
Output for 4.3.0 - 4.3.1: Fatal error: Cannot instantiate non-existent class: domdocument in /in/uuU6t on line 7

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