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    IntlChar::isIDIgnorable

    (PHP 7, PHP 8)

    IntlChar::isIDIgnorable — Check if code point is an ignorable character

    Descrição

    public static IntlChar::isIDIgnorable(int|string $codepoint): ?bool

    Determines if the specified character should be regarded as an ignorable character in an identifier.

    true for characters with general category "Cf" (format controls) as well as non-whitespace ISO controls (U+0000..U+0008, U+000E..U+001B, U+007F..U+009F).

    Nota:

    Note that Unicode just recommends to ignore Cf (format controls).

    Parâmetros

    codepoint

    O valor int do ponto de código (por exemplo, 0x2603 para U+2603 SNOWMAN) ou o caractere codificado como uma string UTF-8 (por exemplo, "\u{2603}")

    Valor Retornado

    Returns true if codepoint is ignorable in identifiers, false if not. Returns null on failure.

    Exemplos

    Exemplo #1 Testando diferentes pontos de código

    <?php
    var_dump    (IntlChar::isIDIgnorable("A"));
    var_dump(IntlChar::isIDIgnorable(" "));
    var_dump(IntlChar::isIDIgnorable("\u{007F}"));
    ?>

    O exemplo acima produzirá:

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

    Veja Também

    • IntlChar::isIDStart() - Check if code point is permissible as the first character in an identifier
    • IntlChar::isIDPart() - Check if code point is permissible in an identifier
    • IntlChar::PROPERTY_DEFAULT_IGNORABLE_CODE_POINT

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