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    IntlChar::iscntrl

    (PHP 7)

    IntlChar::iscntrl — Check if code point is a control character

    설명

    public static bool IntlChar::iscntrl ( mixed $codepoint )

    Determines whether the specified code point is a control character.

    A control character is one of the following:

    • ISO 8-bit control character (U+0000..U+001f and U+007f..U+009f)
    • IntlChar::CHAR_CATEGORY_CONTROL_CHAR (Cc)
    • IntlChar::CHAR_CATEGORY_FORMAT_CHAR (Cf)
    • IntlChar::CHAR_CATEGORY_LINE_SEPARATOR (Zl)
    • IntlChar::CHAR_CATEGORY_PARAGRAPH_SEPARATOR (Zp)

    인수

    codepoint

    The integer codepoint value (e.g. 0x2603 for U+2603 SNOWMAN), or the character encoded as a UTF-8 string (e.g. "\u{2603}")

    반환값

    Returns TRUE if codepoint is a control character, FALSE if not.

    예제

    Example #1 Testing different code points

    <?php
    var_dump    (IntlChar::iscntrl("A"));
    var_dump(IntlChar::iscntrl(" "));
    var_dump(IntlChar::iscntrl("\n"));
    var_dump(IntlChar::iscntrl("\u{200e}"));
    ?>

    위 예제의 출력:

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

    참고

    • IntlChar::isprint() - Check if code point is a printable character
    • IntlChar::PROPERTY_DEFAULT_IGNORABLE_CODE_POINT

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