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.
- Ron ""Sara Golemon"" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > > What happens with > > > > $fp = fopen('foo.bin', 'wb'); > > $written = fwrite($fp, $str); > > if (strlen($str) != $written) > > { > > echo 'Not written', "\n"; > > } > > > Assuming $str is a binary string. The above code works just fine. > > If it's a unicode string: > > Short version: Don't do that. > > Writing a unicode string to a binary mode file yields the U16 character > stream that the string is internally made up of, and yes, in this case > strlen($str) will not equal $written, but it's important to note that doing > this *IS* wrong. What you should be doing, if you want the U16 that the > string is encoded as, is to open the file for writing explicitly set the > encoding. This can be done by either: > > $fp = fopen('foo.txt', 'w'); > stream_encoding($fp, 'utf16'); > > Or any of the context/filter based methods given at: > http://blog.libssh2.org/index.php?/archives/6-PHP6-Streams-Update.html > (This'll all make it into the manual eventually, just saving it for now) > > If you're going to (for some innane reason) switch between encodings as you > write to a file (there's never a good reason for this), you can use the > filter approach and just swap unicode.to.* filters in and out as needed. > > -Sara -- PHP Internals - PHP Runtime Development Mailing List To unsubscribe, visit: http://www.php.net/unsub.php
