The behaviour when a falsy value is passed as the $locale is undocumented, but it appears that it returns the primary language of the default system language. In my case:
Locale::getPrimaryLanguage(null);
Returns 'en'. So make sure to test $locale before passing it to the method.
Locale::getPrimaryLanguage
locale_get_primary_language
(PHP 5 >= 5.3.0, PHP 7, PHP 8, PECL intl >= 1.0.0)
Locale::getPrimaryLanguage -- locale_get_primary_language — Gets the primary language for the input locale
Descrição
Estilo orientado à objeto
public
static
Locale::getPrimaryLanguage
( string
$locale
) : stringEstilo procedural
locale_get_primary_language
( string
$locale
) : stringGets the primary language for the input locale
Parâmetros
-
locale -
The locale to extract the primary language code from
Valor Retornado
The language code associated with the language or null in case of error.
Exemplos
Exemplo #1 locale_get_primary_language() example
<?php
echo locale_get_primary_language('zh-Hant');
?>
Exemplo #2 OO example
<?php
echo Locale::getPrimaryLanguage('zh-Hant');
?>
O exemplo acima irá imprimir:
zh
Veja Também
- locale_get_script() - Gets the script for the input locale
- locale_get_region() - Gets the region for the input locale
- locale_get_all_variants() - Gets the variants for the input locale
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