#46089 [NEW]: Case folding should be off by default

From: joeedh at gmail dot com Operating system: PHP version: 5.2.6 PHP Bug Type: XML related Bug description: Case folding should be off by default Description: ------------ Case folding is against the XML standard, as stated in: http://markmail.org/message/exlh6us4wpbt7juk#query:xml%20case%20folding%20xml-dev+page:1+mid:rikx6p3veteu5und+state:results and: http://www.xml.com/axml/notes/CaseSensitive.html A previous bug was submitted in 2003 about this issue; the decision then was that backwards compatibility trumped adhering to the standard. I'd like to resubmit this issue for consideration, with the following arguments: * XML is a standard. As such, people expect XML parsers to all behave the same way within reasonable limits. Violating the standard is definitely something people never expect the parser to do. * Backwards compatibility is important, yet there are ways to mitigate the problems. Deprecation warning are used a lot. Unfortunately, they'd be fairly tricky in this case. I guess one way would be to have a flag in php.ini to use the old default. And also perhaps have a version of PHP (with the same default) that spat out warnings if the case folding setting isn't user-set *with a note about the php.ini flag and that the default will change next version* (of course the warnings would be disabled if the flag is set). As evil as that would be, it's the only deprecation warning scheme I can think of (not that I have the slightest experience deprecating aspects of APIs or languages :) ). * Finally, to expand on my first point, since case folding is against the XML spec, enabling it by default screws everyone over who is using XML precisely because it *is* a standard. -- Edit bug report at http://bugs.php.net/?id=46089&edit=1 -- Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=46089&r=trysnapshot52 Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=46089&r=trysnapshot53 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=46089&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=46089&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=46089&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=46089&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=46089&r=needscript Try newer version: http://bugs.php.net/fix.php?id=46089&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=46089&r=support Expected behavior: http://bugs.php.net/fix.php?id=46089&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=46089&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=46089&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=46089&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=46089&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=46089&r=dst IIS Stability: http://bugs.php.net/fix.php?id=46089&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=46089&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=46089&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=46089&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=46089&r=mysqlcfg