like the topic mention.... for example

```
int[10] msg;

msg[0] = 1;
msg[1] = 2;

const char* a = (const char*)msg[0];      
const char* b = (const char*)msg[1];

```

It seem there is no value when I test by printf

I'm going to use it this way

```
char test[20];
strcpy(test, a);
strcat(test, ",");
strcat(test, b);
strcat(test, "\0");
mclient.publish("topic1/sensorAck",test);

```

The result show only comma