(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0)
Locale::getPrimaryLanguage -- locale_get_primary_language — Gets the primary language for the input locale
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$locale
) : string锟斤拷锟教伙拷锟斤拷锟�
$locale
) : stringGets the primary language for the input locale
localeThe locale to extract the primary language code from
The language code associated with the language or NULL in case of error.
Example #1 locale_get_primary_language() example
<?php
echo locale_get_primary_language('zh-Hant');
?>
Example #2 OO example
<?php
echo Locale::getPrimaryLanguage('zh-Hant');
?>
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zh