Bug->Doc #69481 [Opn]: how php initializes locale is not documented

Edit report at https://bugs.php.net/bug.php?id=69481&edit=1 ID: 69481 Updated by: cmb@php.net Reported by: glen at delfi dot ee Summary: how php initializes locale is not documented Status: Open -Type: Bug +Type: Documentation Problem Package: *General Issues PHP Version: Irrelevant Block user comment: N Private report: N New Comment: > the fact that there even is setlocale(LC_CTYPE, "") done > unconditionally in php init, […] This is fortunately no longer the case as of PHP 8.0.0[1]. [1] <https://github.com/php/php-src/commit/c4ad8beaa890b931031a5cf8a1d2d38550fca3af> Previous Comments: ------------------------------------------------------------------------ [2015-04-19 08:11:52] glen at delfi dot ee Description: ------------ seems php initializes ONLY LC_CTYPE from enviroment, leaving default behaviour that declaring LC_ALL value overrides any other category BROKEN: this seems to be related to some experiment done in 2000 and then reverted: https://github.com/php/php-src/commit/7e0baa7a1daa531e39881e59842c88d12e42c901 the fact that there even is setlocale(LC_CTYPE, "") done unconditionally in php init, is not documented. but i think it should be either: 1. no unconditional setlocale() call at all 2. setlocale(LC_ALL, ""); 3. setlocale(LC_ALL, "C"); the last one is probably the worst. Test script: --------------- compare how system date command behaves and how php behaves: test1: only LC_ALL env var is set, but php resets LC_CTYPE, meaning LC_CTYPE gets env value, the other categories get reset to C: $ env -i LC_ALL=et_EE.utf8 php -r 'var_dump(setlocale(LC_ALL, 0)); passthru("set -x;env;date +%A%d.%B"); echo "\nPHP:", strftime("%A, %d. %B"), "\n";' string(169) "LC_CTYPE=et_EE.utf8;LC_NUMERIC=C;LC_TIME=C;LC_COLLATE=C;LC_MONETARY=C;LC_MESSAGES=C;LC_PAPER=C;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=C;LC_IDENTIFICATION=C" + env _=/usr/bin/env LC_ALL=et_EE.utf8 PATH=/usr/bin:/bin + date +%A%d.%B pühapäev19.aprill PHP:Sunday, 19. April test2: if php would do setlocale(LC_ALL, "") instead of setlocale(LC_CTYPE, ""), then result is as expeted, LC_ALL overrides all categories. shell and php behaviour matches: $ env -i LC_ALL=et_EE.utf8 php -r 'setlocale(LC_ALL, ""); var_dump(setlocale(LC_ALL, 0)); passthru("set -x;env;date +%A%d.%B"); echo "\nPHP:", strftime("%A, %d. %B"), "\n";' string(10) "et_EE.utf8" + env _=/usr/bin/env LC_ALL=et_EE.utf8 PATH=/usr/bin:/bin + date +%A%d.%B pühapäev19.aprill PHP:pühapäev, 19. aprill ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=69481&edit=1