Re: [PROPOSAL] Alphanumeric decrement

Hi Decrementing "a" to a number isn't a good idea because on incrementing again you will increment the number and not go back to "a". In my opinion this should be a warning/error and the value should stay as "a". This warning/error should be triggered on incrementing/decrementing a non alphanumeric string (inclusive an empty string), too. Greetings Marc Am 12.12.2013 21:02, schrieb Andrea Faulds: > Good evening, > > At present, it's possible to increment (++) an alphanumeric string, such > that "a" when incremented becomes "b", "z" becomes > "aa", and so on. > > However, it's irritated me that the same is not true for the decrement > (--) operator. At present, "aa" when decremented stays as "aa", and > "b" > when decremented stays as "b". This lack of symettry is counterintuitive > to me. I don't think it's what you would expect here. > > So I've written a patch which would change this. "aa" when decremented > would be "z", and "b" when decremented would be "a". It also > handles > decrementing "a", which becomes "0". This creates an interesting new > asymettry: {$a = "a"; $a--; $a++;} will result in $a being integer 1. I > think it's better than the previous behaviour, though, which resulted in > "b". > > The diff is here: > > https://github.com/TazeTSchnitzel/php-src/compare/php:PHP-5.6...AlphanumericDecrement > > > My aim is to try and get this into PHP 5.6, if people are interested. > Thoughts? >