PHP 8.4.0 RC4 available for testing

    A classe Spoofchecker

    (PHP 5 >= 5.4.0, PHP 7, PHP 8, PECL intl >= 2.0.0)

    Introdução

    Esta classe é fornecida porque o Unicode contém um grande número de caractares e incorpora sistemas variados de escrita de todo o mundo e seu uso incorreto pode expor programas ou sistemas a possíveis ataques à segurança usando similaridade de caracteres.

    Os métodos fornecidos permitem verificar se uma string individual pode ser uma tentativa de confundir o leitor (spoof detection), como em "pаypаl" escrito com caracteres cirílicos 'а'.

    Resumo da classe

    class Spoofchecker {
    /* Constantes */
    public const int SINGLE_SCRIPT_CONFUSABLE;
    public const int MIXED_SCRIPT_CONFUSABLE;
    public const int WHOLE_SCRIPT_CONFUSABLE;
    public const int ANY_CASE;
    public const int SINGLE_SCRIPT;
    public const int INVISIBLE;
    public const int CHAR_LIMIT;
    public const int ASCII;
    public const int HIGHLY_RESTRICTIVE;
    public const int MODERATELY_RESTRICTIVE;
    public const int MINIMALLY_RESTRICTIVE;
    public const int UNRESTRICTIVE;
    public const int SINGLE_SCRIPT_RESTRICTIVE;
    public const int MIXED_NUMBERS;
    public const int HIDDEN_OVERLAY;
    /* Métodos */
    public __construct()
    public areConfusable(string $string1, string $string2, int &$errorCode = null): bool
    public isSuspicious(string $string, int &$errorCode = null): bool
    public setAllowedLocales(string $locales): void
    public setChecks(int $checks): void
    public setRestrictionLevel(int $level): void
    }

    Registro de Alterações

    Versão Descrição
    7.3.0 Constantes de classe usadas por Spoofchecker::setRestrictionLevel() como Spoofchecker::ASCII, Spoofchecker::HIGHLY_RESTRICTIVE, Spoofchecker::MODERATELY_RESTRICTIVE, Spoofchecker::MINIMALLY_RESTRICTIVE, Spoofchecker::UNRESTRICTIVE, Spoofchecker::SINGLE_SCRIPT_RESTRICTIVE foram adicionadas.

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    Notas Enviadas por Usuários (em inglês) 2 notes

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    Anonymous
    7 years ago
    From http://icu-project.org/apiref/icu4j/com/ibm/icu/text/SpoofChecker.html :
    SINGLE_SCRIPT_CONFUSABLE: indicates that the two strings are visually confusable and that they are from the same script
    MIXED_SCRIPT_CONFUSABLE: indicates that the two strings are visually confusable and that they are NOT from the same script
    WHOLE_SCRIPT_CONFUSABLE: indicates that the two strings are visually confusable and that they are NOT from the same script BUT both of them are single-script strings
    ANY_CASE: Deprecated.
    SINGLE_SCRIPT: Deprecated.
    INVISIBLE: Check an identifier for the presence of invisible characters, such as zero-width spaces, or character sequences that are likely not to display, such as multiple occurrences of the same non-spacing mark.
    CHAR_LIMIT: Check that an identifier contains only characters from a specified set of acceptable characters.

    Explanation of whole script, mixed script and single script confusables in UTS 39 section 4 : http://unicode.org/reports/tr39/#Confusable_Detection

    Details from Java SpoofChecker class at http://icu-project.org/apiref/icu4j/com/ibm/icu/text/SpoofChecker.html
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    -1
    Anonymous
    6 years ago
    Spoofchecker yields false positives by defaut when Whole-Script Confusables (WSC) and Mixed-Script Confusables (MSC) checks are used.
    They have been deprecated since ICU 58:
    http://bugs.icu-project.org/trac/ticket/12549#comment:10

    Workarounds: upgrade ICU to 58+, or avoid the MSC and WSC checks with Spoofcheckers' setChecks() function.
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