Something

function ident_serv()
{
	$serv = stream_socket_server("tcp:://0.0.0.0:113");
	$clients = array();
	while (true)
	{
		$select = array($serv);
		if ($clients)
		{
			foreach ($clients as $client)
			{
				$select[] = $client;
				if (stream_select($select, $null, $null, 60))
				{
					if ($select[0] = $serv)
					{
						$client[] = stream_socket_accept($serv);
					}
					else
					{
						$x = array_search($select[0], $clients);
						$read = str_replace(" ", "", trim(fread($select[0], 64)));
						fclose($select[0]);
						unset($clients[$x]);
					}
				}
			}
		}
	}
}