/**
* Sends a magic packet to the specified IP/MAC address using the specified
* address protocol.
* @param string $ip The broadcast IP address to use
* @param string $mac The MAC address of the device to wake
* @param int $protocol The type of IP to use. Deafult AF_INET
* @return int|bool The result of sending the packet
*/
public static function wake($ip, $mac, $protocol = AF_INET)
{
if (empty($ip) || empty($mac)) {
throw new \Exception('Broadcast IP address and MAC address required.');
}
if (!in_array($protocol, array(AF_INET, AF_INET6, AF_UNIX))) {
throw new \Exception('Invalid protocol.');
}
$socket = socket_create($protocol, SOCK_DGRAM, SOL_UDP);
if ($socket && is_resource($socket)) {
if (!socket_set_option($socket, SOL_SOCKET, SO_RCVTIMEO, array('sec' => $timeout, 'usec' => 0))) {
throw new \Exception('Unable to set options on socket: ' . socket_strerror(socket_last_error()) . PHP_EOL);
}
$packet = SELF::generateMagicPacket();
$result = socket_sendto($socket, $packet, strlen($packet), 0, $ip, 7);
socket_close($socket);
return $result;
} else {
throw new \Exception('Connection failed: ' . socket_strerror(socket_last_error()) . PHP_EOL);
}
}
