> > // Add to the running totals > @$hits["$username|$subnet"]++; > @$bytes["$username|$subnet"]+=$byte; > @$baps["$username|$subnet|$this_second"]++; > @$bapm["$username|$subnet|$this_minute"]++; > > What kind of arrays are the above? I have never seen > nor worked with arrays like them before. > > If you can point me to a particular place in the > manual or a few URLs too would be appreciated.
It looks like the code was written by an awk programmer, or a programmer of some language that doesn't natively support multidimensional assoc arrays. It's just a normal array.. but the author is creating keys on the fly
for which the values area being incremented. And because there's no error checking for the key not existing previously, he has used the dirty error suppression operator. BAD BAD BAD CODER! Remember, if an error occurs and you have a custom error handler, your custom error handler still gets invoked. OWWIE!
I would submit that the error suppression operator isn't BAD BAD BAD per se - it's just like goto, in that 99% of its use is bad. In the absence of a comment justifying it, the error-suppressed expression is BAD. There are some cases where the Error Suppression operator may be useful in good code. I wouldn't use it to suppress anything more serious than E_NOTICE. I don't think I ever used this operator, but if I did, i'd explain why there is no possible case where the code could emit an E_WARNING or higher. Cheers,
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