Script works completely fine - But Error Log gives me "Undefined Variable"

I have a script in which $count = "5";

Now at the bottom of my script is: $count = $whosonline;

This simply transfers the value of $count to $whosonline, which I use in the next part of the script.

The whole thing works perfectly fine, but my error log gives me:
[error] PHP Notice: Undefined variable: whosonline in [directory] on line 38

Not sure why it's doing that. Is it that I'm not supposed to be introducing variables just like that? Would it make a difference if I did $whosonline = $count?

Thanks.

 

set $whosonline=0;

 

But $whosonline isn't equal to 0

 

Should it not be that $whoisonline = $count and not the other way around as described in your post ?

$count is already functioning without errors because it has a value, thus its defined, so now you need to apply the value to $whoisonline rather then changing the variable name to $whoisonline

So at the bottom of your script or wherever else is appropriate, in preparation for the second part of your script:

$whoisonline = $count;

PHP:

 

Works, thanks.