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Simplest way to detect client locale in PHP
PHP provides a function beginning from 5.3.0 to parse the ‘$_SERVER['HTTP_ACCEPT_LANGUAGE']’ variable into a locale −
Example
$locale = Locale::acceptFromHttp($_SERVER['HTTP_ACCEPT_LANGUAGE']); echo $locale;
The ‘$_SERVER['HTTP_ACCEPT_LANGUAGE']’ function helps detect the locale by taking the current locale’s language as the parameter.
Output
This will produce the following output −
en_US
Most browsers submit an Accept-Language HTTP header that specifies en-us if they are from the US. Some older browsers use en only.
English-UK based users usually set their system or user locale to English-UK, which is the default browser configuration. This would result in en-gb as the Accept Language header. Other countries have en locales, such as en-za (South Africa), and so on.
Geo-IP based guesses would less likely be correct on the preferred language/locale.
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