Online PHP editor | output for U16Lb

@ 2013-05-27T18:44:31Z

<?php
$x = <<<XML
<data type="current observations">
    <time-layout time-coordinate="local">
        <start-valid-time period-name="current">2013-05-27T13:53:00-04:00</start-valid-time>
    </time-layout>
</data>
XML;

$weather = new SimpleXMLElement($x);

$data = $weather->xpath('/data[@type="current observations"]');
$time_layout = $data[0]->xpath('time-layout[@time-coordinate="local"]');
$start_valid_time = $time_layout[0]->xpath('start-valid-time[@period-name="current"]');
echo (string)$start_valid_time[0];

Output for 5.0.0 - 5.0.5, 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 - 5.5.37, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 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 - 8.3.6: 2013-05-27T13:53:00-04:00
Output for 4.3.9 - 4.3.11, 4.4.0 - 4.4.1, 4.4.3 - 4.4.9: Fatal error: Cannot instantiate non-existent class: simplexmlelement in /in/U16Lb on line 10
Process exited with code 255.
Output for 4.4.2: Fatal error: Cannot instantiate non-existent class: simplexmlelement in /in/U16Lb on line 11
Process exited with code 255.

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