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    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

    说明

    面向对象风格

    public static Locale::getPrimaryLanguage(string $locale): ?string

    过程化风格

    locale_get_primary_language(string $locale): ?string

    Gets the primary language for the input locale

    参数

    locale

    The locale to extract the primary language code from

    返回值

    The language code associated with the language.

    当 locale 的长度超过 INTL_MAX_LOCALE_LEN 时返回 null。

    示例

    示例 #1 locale_get_primary_language() example

    <?php
    echo locale_get_primary_language('zh-Hant');
    ?>

    示例 #2 OO example

    <?php
    echo Locale::getPrimaryLanguage('zh-Hant');
    ?>

    以上示例会输出：

    zh

    参见

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    User Contributed Notes 1 note

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    10
    Mahn
    9 years ago
    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.
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