Re: Why does it work this way?

I didn't read carefully yours and original post. Sorry. Anyway, warn_plus_overloading = On ; warn if the + operator is used with strings does not raise warnings on my PHP4.0.4pl1 for some reason. I think incrementing strings should results in 1 if type juggling works as documented. -- Yasuo Ohgaki ""Mark Roedel"" <MarkRoedel@letu.edu> wrote in message news:E162F01D7D84F645924A046DA1FE60F30E982D@rachael.letnet.net... > -----Original Message----- > From: Yasuo Ohgaki [mailto:yohgaki@hotmail.com] > Sent: Monday, April 02, 2001 8:00 PM > To: php-general@lists.php.net > Subject: Re: [PHP] Why does it work this way? > > > I guess PHP is doing this > > $str = "a"; > $str++; > > as > > $str = "a"; > $str = $str + $str; // $str now stores "aa" On my installation of PHP (4.0.4pl1, Apache 1.3.17, FreeBSD 4.2-STABLE), the above snippet results in $str storing a zero value. (Which makes sense. The numerical value of "a" is zero.) However $str = "a"; $str++; results in $str storing the value "b". It's $str = "z"; $str++; that results in "aa" being stored in $str. (This behavior was, in fact, what started the thread you replied into.) --- Mark Roedel (roedelm@letu.edu) || "There cannot be a crisis next week. Systems Programmer / WebMaster || My schedule is already full." LeTourneau University || -- Henry Kissinger -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: php-general-unsubscribe@lists.php.net For additional commands, e-mail: php-general-help@lists.php.net To contact the list administrators, e-mail: php-list-admin@lists.php.net