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

    说明

    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.

    参数

    string

    String to test.

    errorCode

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

    返回值

    Returns true if there are suspicious characters, false otherwise.

    示例

    示例 #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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