public static function doHead($url, $options = array())
{
$r = HttpUtils::_doGetHead($url, 'HEAD', $options);
if (empty($options['follow.redirects'])) {
return $r;
}
$maxRedirCount = isset($options['follow.maxcount']) ? $options['follow.maxcount'] : 10;
$redirCount = 0;
while ($r->httpCode[0] == '3' && $redirCount < $maxRedirCount) {
$location = null;
foreach ($r->headers as $k => $v) {
if (strcasecmp($k, 'location') === 0) {
$location = $v;
break;
}
}
if (!empty($location)) {
$r = HttpUtils::_doGetHead($location, 'HEAD', $options);
}
}
return $r;
}