Support/Comments for extra "Updater"

[21-Aug-2015 15:06:49] PHP Parse error: syntax error, unexpected T_FUNCTION in /home7/xxxxxxx/public_html/core/components/updater/model/updater.class.php on line 336

usort( $versionArr, function($a,$b) {
                       if ($a->name == $b->name) {
                           return 0;
                       }
                       return -version_compare( $a->name, $b->name );
                    });

$versonsToShow = $this->modx->getOption('versionsToShow, $scriptProperties, 5);
$versionsToShow = min($versionsToShow, count($versionArray);
for ($i = 1; $i < $versionsToShow; $i++) {
    $element = $versionArray[$i];
    $j = $i;
    while ($j > 0 && version_compare($versionArray[$j - 1]->name, $element->name) < 0) {
        $versionArray[$j] = $versionArray[$j - 1];
        $j = $j - 1;
    }
    $versionArray[$j] = $element;
}