Req #76500 [Nab->Csd]: fputcsv() is ignoring the value FALSE

Edit report at https://bugs.php.net/bug.php?id=76500&edit=1 ID: 76500 Updated by: phpdocbot@php.net Reported by: thomas at landauer dot at Summary: fputcsv() is ignoring the value FALSE -Status: Not a bug +Status: Closed Type: Feature/Change Request Package: Filesystem function related Operating System: Linux Mint PHP Version: 7.1.18 Block user comment: N Private report: N New Comment: Automatic comment on behalf of cmb Revision: http://git.php.net/?p=doc/en.git;a=commit;h=e5273c2500a0e42341935cd1fe2811cce83db5c0 Log: Fix #76500: fputcsv() is ignoring the value FALSE Previous Comments: ------------------------------------------------------------------------ [2018-06-19 18:19:13] spam2 at rhsoft dot net > I guess we all agree that the current mapping isn't quite smart no, because there is no mapping at all, it's that easy that's how implicit type casting works if you touch that here and make special cases you open a can of worms ------------------------------------------------------------------------ [2018-06-19 18:13:56] thomas at landauer dot at > The quotes are not part of the string Yeah, you're right, sorry! The quotes are added only if the string contains special characters. > echo (int)NULL; Yeah ;-) But let's see it from a different perspective: In the database, we have three possible values: true, false, null In the CSV file, we have three options: 1, 0, nothing I guess we all agree that the current mapping isn't quite smart: true => 1 false, null => nothing So what I'm asking for is *some* way to get: true => 1 false => 0 null => nothing ------------------------------------------------------------------------ [2018-06-19 17:11:08] spam2 at rhsoft dot net and if you want to distinct between false and NULL you have to be prepared to do that by hand anyways in the export as well as in the import because your "So if you have a nullable boolean field in your database, this function becomes completely useless, since you can't tell null from false" is pointless too php > echo (int)false; 0 php > echo (int)NULL; 0 ------------------------------------------------------------------------ [2018-06-19 17:07:22] nikic@php.net > CSV (and fputcsv()) does have a distinction between strings and > numbers: the quotes! true is exported as > 1, not as "1". Why?? => > The only possible answer I see: Because it's casted to int (not > to string). Such a distinction does not exist. The quotes are not part of the string (unless you explicitly include them), so obviously they will not be printed. In PHP, (string)false=="". That may or may not be a good choice, but it's the way it is and not going to change. fputcsv() does nothing more and nothing less than a simple string cast before printing the value. If you want to deviate from the standard string casting logic, you need to do so yourself. ------------------------------------------------------------------------ [2018-06-19 17:06:06] spam2 at rhsoft dot net but csv is all about TEXT and not numbers, so there is no point that something is casted to int - if you want http://php.net/manual/en/language.types.type-juggling.php if you want to avoid this you have to cast your values explicit, that's it ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at https://bugs.php.net/bug.php?id=76500 -- Edit this bug report at https://bugs.php.net/bug.php?id=76500&edit=1