RE: [PHP-DEV] Re: strlen() under unicode.semantics

Hmm, I was thinking we might have some binary write function which would do that automagically. I think it'd be worth it. > -----Original Message----- > From: Andrei Zmievski [mailto:andrei@gravitonic.com] > Sent: Thursday, June 22, 2006 11:38 PM > To: Andi Gutmans > Cc: 'Sara Golemon'; '"Ron Korving"'; internals@lists.php.net > Subject: Re: [PHP-DEV] Re: strlen() under unicode.semantics > > The only way they can get at the internal UTF-16 > representation is via unicode_encode($uni, 'UTF-16') which > will return a binary UTF-16 string. In that case, strlen() > will work just as well. > > -Andrei > > > On Jun 22, 2006, at 11:30 PM, Andi Gutmans wrote: > > > I don't quite agree. I think there's a good chance people > will want to > > save Unicode strings in a binary format for performance > reasons. Save > > it the way it looks in memory, and put it back... Why > convert to UTF-8 > > or any other encoding if it's just about storage? > > > > Andi > > > >> -----Original Message----- > >> From: Sara Golemon [mailto:pollita@php.net] > >> Sent: Thursday, June 22, 2006 9:15 PM > >> To: "Ron Korving" > >> Cc: internals@lists.php.net > >> Subject: Re: [PHP-DEV] Re: strlen() under unicode.semantics > >> > >>> Still, it's gotta be useful to be know how many bytes it occupies. > >>> Perhaps for Content-length headers or something. There are > >> plenty of > >>> low level concepts to think of where one might need this. > >> And even if > >>> you can't think of any reason now, you don't wanna get hit > >> in the face > >>> by it and have to implement such a function for PHP 6.0.1. > >>> > >> For this type of usage, I'd think it'd be relevant to know > how many > >> bytes the string will occupy in a given output encoding > moreso that > >> what it happens to occupy in the underlying > implementation. In the > >> example you cited, string contents will more typically be sent as > >> utf8 rather than the > >> utf16 of php's internal encoding. > >> > >> $utf8str = unicode_encode($unistr, 'utf8'); > >> > >> header('Content-type: text/html; encoding="utf8"'); > >> header('Content-length: ' . strlen($utf8str)); echo $utf8str; > >> > >> I'm not saying it's impossible that a legitimate use will > come up to > >> know the internal byte-usage of a unicode string, there's > certainly > >> no harm in adding such a function (apart from the tired shot-foot > >> argument). I just doubt you (or > >> anyone) will come up such a case anytime soon. > >> > >> -Sara > >> > >> -- > >> PHP Internals - PHP Runtime Development Mailing List To > unsubscribe, > >> visit: http://www.php.net/unsub.php > >> > > > > -- > > PHP Internals - PHP Runtime Development Mailing List To > unsubscribe, > > visit: http://www.php.net/unsub.php >