Re: bool values and increment operators?

On Mon, Mar 25, 2019 at 11:03 AM Christian Schneider <cschneid@cschneid.com> wrote: > Am 25.03.2019 um 15:43 schrieb Dan Ackroyd <danack@basereality.com>: > > So this code: > > > > <?php > > > > declare(strict_types=1); > > > > $i = true; > > $i++; > > var_dump($i); > > $i--; > > var_dump($i); > > > > > > $i = false; > > $i++; > > var_dump($i); > > $i--; > > var_dump($i); > > > > outputs: > > > > bool(true) > > bool(true) > > bool(false) > > bool(false) > > > > which is quite surprising on multiple levels. > > The documentation has a highlighted box stating > "Note: The increment/decrement operators only affect numbers and strings. > Arrays, objects and resources are not affected. Decrementing NULL values > has no effect too, but incrementing them results in 1." > > I guess bools should be added to the list of things not affected. > > $i = false; $i+=1; var_dump($i); that outputs int(1) I'd say that 1.) Update the documentation to add booleans to the second list 2.) Update the documentation to remove the second list - anything not in the first list is not affected. 3.) Update the language so that ++ and -- cast booleans to ints. I don't think #3 is actually a good solution. > - Chris > > > -- > PHP Internals - PHP Runtime Development Mailing List > To unsubscribe, visit: http://www.php.net/unsub.php > > -- Chase Peeler chasepeeler@gmail.com