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  • IntlChar::isUUppercase()

    版本:php7

    (PHP 7)

    Check if code point has the Uppercase Unicode property

    说明

    publicstaticIntlChar::isUUppercase(mixed $codepoint): bool

    Check if a code point has the Uppercase Unicode property.

    This is the same asIntlChar::hasBinaryProperty($codepoint, IntlChar::PROPERTY_UPPERCASE)

    Note:

    This is different than IntlChar::isupper() and will return TRUE for more characters.

    参数

    $codepoint

    The integer codepoint value(e.g.0x2603forU+2603 SNOWMAN), or the character encoded as a UTF-8 string(e.g."u{2603}")

    返回值

    Returns TRUE if$codepointhas the Uppercase Unicode property,FALSE if not.

    范例

    Testing different code points

    <?php
    var_dump(IntlChar::isUUppercase("A"));
    var_dump(IntlChar::isUUppercase("a"));
    var_dump(IntlChar::isUUppercase("Φ"));
    var_dump(IntlChar::isUUppercase("φ"));
    var_dump(IntlChar::isUUppercase("1"));
    ?>
    

    以上例程会输出:

    bool(true)
    bool(false)
    bool(true)
    bool(false)
    bool(false)
    

    参见

    • IntlChar::isupper() Check if code point has the general category "Lu"(uppercase letter)
    • IntlChar::hasBinaryProperty() Check a binary Unicode property for a code point
    • IntlChar::PROPERTY_UPPERCASE