/**
* Returns the name of the web server.
*
* Returns 'n/a' in case the web server could not be determined.
*
* @return string
*/
public static function getWebServer()
{
// get server information as array
$serverSoftware = StringUtil::split('/', strip_tags(EnvironmentUtil::getEnvironmentVariable('SERVER_SOFTWARE')), 2);
// check for web server name
if (isset($serverSoftware[0])) {
// try to get web server version
if (isset($serverSoftware[1])) {
// get web server version
$webServerVersion = StringUtil::split(' ', $serverSoftware[1], 2)[0];
// append web server version to web server name
if ($webServerVersion !== '') {
return $serverSoftware[0] . ' ' . $webServerVersion;
}
}
// return web server
return $serverSoftware[0];
}
// unable to determine web server
return 'n/a';
}
