At some times, server can not change locale

Question

I have a problem with a PHP script sometimes triggering weird warnings in the Apache error log :

bash: warning: setlocale: LC_ALL: cannot change locale (fr_FR.utf8) bash: warning: setlocale: LC_ALL: cannot change locale (fr_FR.utf8) bash: warning: setlocale: LC_ALL: cannot change locale (fr_FR.utf8) bash: warning: setlocale: LC_ALL: cannot change locale (fr_FR.utf8)

Below is the code generating this warning. (it is used to configure gettext).

 $lang='fr_FR.utf8'; $filename = 'default'; putenv("LC_ALL=$lang"); setlocale(LC_ALL, $lang); bindtextdomain($filename, './config/locale'); bind_textdomain_codeset($filename, "UTF-8"); textdomain($filename);

The weird thing is that the warning does not systematically appear. If I restart Apache, it will not appear for some minutes (i.e. serving hundreds of requests without any warning) and then it will progressively start appearing.

Thank you

yes. I thought though that this was not relevant to me since Apache on my server is running in prefork mode — David
– David, Commented Jul 18, 2012 at 15:15

Community · Accepted Answer · 2017-05-23 12:13:49Z

0

setlocale is not thread safe (See What does thread safe mean in a PHP context?. That's why the Zend Framework implements their own Locale system.

edited May 23, 2017 at 12:13

CommunityBot

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answered Jul 18, 2012 at 15:12

Ross Smith II

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1 Comment

David Over a year ago

thought this wouldn't be a problem as my Apache is running in prefork mode?

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