[asterisk-users] Conditional branching

[bails]

Doug Lytle wrote:
> bails wrote:
> 
>> Hi all, I'm trying to set some variables absed on a mysql query, but 
>> the  value i want to return is "".
>>
>> from everything i read i cant seem to match on it.
>>
>> eg.
>>
>> exten => _X,11,GotoIf($[${datavar1} = ""]?30:12)
> 
> 
> How about:
> 
> exten => _X,11,GotoIf($["${datavar1}" != ""]?12:30)
> 
> Doug
> 
> 
> 
Thanks Doug that works a treat, however as i've "just taken the fish", 
is there anywhere that'll "teach me to fish", ie any good tutorials out 
there for varaibles and asterisk?

Thanks

Bails