PHP Conference Nagoya 2025

    Spoofchecker::isSuspicious

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

    Spoofchecker::isSuspicious — Checks if a given text contains any suspicious characters

    Beschreibung

    public Spoofchecker::isSuspicious(string $string, int &$errorCode = null): bool

    Checks if given string contains any suspicious characters like letters which are almost identical visually, but are Unicode characters from different sets.

    Parameter-Liste

    string

    String to test.

    errorCode

    This variable is set by-reference to Integer containing an error, if there was any.

    Rückgabewerte

    Returns true if there are suspicious characters, false otherwise.

    Beispiele

    Beispiel #1 Spoofchecker::isSuspicious() example

    <?php
    $checker     = new Spoofchecker();

    $checker->isSuspicious('google.com'); // FALSE: only ASCII characters

    $checker->isSuspicious('Рaypal.com'); // TRUE
    // The first letter is from Cyrylic, not a regular latin "P"

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