(PHP 5 >= 5.3.0, PHP 7, PHP 8, PECL intl >= 1.0.0)
Locale::getRegion -- locale_get_region — Gets the region for the input locale
面向对象风格
$locale
) : string|null过程化风格
$locale
) : string|nullGets the region for the input locale.
localeThe locale to extract the region code from
The region subtag for the locale or null if not present
Returns null when the length of locale exceeds INTL_MAX_LOCALE_LEN.
Example #1 locale_get_region() example
<?php
echo locale_get_region('de-CH-1901');
?>
Example #2 OO example
<?php
echo Locale::getRegion('de-CH-1901');
?>
以上例程会输出：
CH
locale_get_region does no validation of whether the region exists, but just extracts the text that looks like it can be the region part of the locale, and formats it as uppercase.
It doesn't even have to be a 2-character code, but can be an invalid 3-character one.