public function Query()
{
$Length = StrLen($this->ServerIP);
$Data = Pack('cccca*', HexDec($Length), 0, 0x4, $Length, $this->ServerIP) . Pack('nc', $this->ServerPort, 0x1);
Socket_Send($this->Socket, $Data, StrLen($Data), 0);
// handshake
Socket_Send($this->Socket, "", 2, 0);
// status ping
$Length = $this->ReadVarInt();
// full packet length
if ($Length < 10) {
return FALSE;
}
Socket_Read($this->Socket, 1);
// packet type, in server ping it's 0
$Length = $this->ReadVarInt();
// string length
$Data = Socket_Read($this->Socket, $Length, PHP_NORMAL_READ);
// and finally the json string
if ($Data === FALSE) {
throw new MinecraftPingException('Server didn\'t return any data');
}
$Data = JSON_Decode($Data, true);
if (JSON_Last_Error() !== JSON_ERROR_NONE) {
if (Function_Exists('json_last_error_msg')) {
throw new MinecraftPingException(JSON_Last_Error_Msg());
} else {
throw new MinecraftPingException('JSON parsing failed');
}
return FALSE;
}
return $Data;
}
private function CheckSession($Data)
{
$Data = JSON_Decode($Data, true);
if (JSON_Last_Error() !== JSON_ERROR_NONE || !Array_Key_Exists('Status', $Data)) {
return false;
}
return $Data['Status'] === 'OK';
}
