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    IntlChar::iscntrl

    (PHP 7)

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

    Descrierea

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

    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)

    Parametri

    codepoint

    Valoarea codepoint de tip integer (de ex. 0x2603 pentru U+2603 SNOWMAN) sau caracterul codificat ca string în UTF-8 (de ex. "\u{2603}")

    Valorile întoarse

    Returns true if codepoint is a control character, false if not.

    Exemple

    Example #1 Testarea diferitor code points

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

    Exemplul de mai sus va afișa:

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

    A se vedea și

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

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