Doc #76500 [Csd]: fputcsv() is ignoring the value FALSE

Edit report at https://bugs.php.net/bug.php?id=76500&edit=1 ID: 76500 Updated by: cmb@php.net Reported by: thomas at landauer dot at Summary: fputcsv() is ignoring the value FALSE Status: Closed Type: Documentation Problem Package: Filesystem function related Operating System: Linux Mint PHP Version: 7.1.18 Assigned To: cmb Block user comment: N Private report: N New Comment: > So if you have a nullable boolean field in your database, this > function becomes completely useless, since you can't tell > null > from false. And you won't be able to distinguish either from an empty string. CSV knows nothing about NULLs and booleans – it's all about strings. You have to cater to that yourself in any way that suits your use-case. > But I'd suggest to add an optional argument to configure how > false is treated - […] In my opinion, adding yet another optional argument to fputcsv() does more harm than good. However, feel free to start the RFC process[1]. :) [1] <https://wiki.php.net/rfc/howto> Previous Comments: ------------------------------------------------------------------------ [2018-06-19 15:19:45] thomas at landauer dot at Yeah, sure (string)false === ''. But (string)null === '' too! So if you have a nullable boolean field in your database, this function becomes completely useless, since you can't tell null from false. Fixing the documentation is certainly better than nothing (haven't seen it live, though). But I'd suggest to add an optional argument to configure how false is treated - something like the $options constants in json_encode(). ------------------------------------------------------------------------ [2018-06-19 15:03:01] cmb@php.net This bug has been fixed in the documentation's XML sources. Since the online and downloadable versions of the documentation need some time to get updated, we would like to ask you to be a bit patient. Thank you for the report, and for helping us make our documentation better. ------------------------------------------------------------------------ [2018-06-19 15:02:37] cmb@php.net Automatic comment from SVN on behalf of cmb Revision: http://svn.php.net/viewvc/?view=revision&amp;revision=345171 Log: Fix #76500: fputcsv() is ignoring the value FALSE ------------------------------------------------------------------------ [2018-06-19 14:57:12] cmb@php.net Indeed, this is not a bug, since (string)false === ''. The docs could be improved in this regard, though. ------------------------------------------------------------------------ [2018-06-19 14:41:36] haseeb dot basil at gmail dot com This doesn't sound like a bug, it is possible for false to be interpreted as null rather than 0. You can probably do something like this to get 0(adjust according to your actual code): Script: --------------------- $data = array('name'=>'foo', 'active'=> (int)false); $f = fopen('php://memory', 'r+'); fputcsv($f, $data); rewind($f); echo stream_get_contents($f); Result: -------------------------- foo,0 ------------------------------------------------------------------------ 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