/**
* Loads all hostnames in the certificate.
*
* @return array
*/
public function getHostnames()
{
// get all certificate alt names
$altNames = $this->x509->getExtension('id-ce-subjectAltName');
if ($altNames) {
array_walk($altNames, function (&$value, $key) {
$value = $value['dNSName'];
});
} else {
$altNames = [];
}
$hostnames = array_merge($this->x509->getDNProp('CN') ?: [], $altNames);
// array unique removes possible duplicates from CN also in altnames
return array_unique($hostnames);
}
