(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
$string, int &$errorCode = null): boolChecks if given string contains any suspicious characters like letters which are almost identical visually, but are Unicode characters from different sets.
stringString to test.
errorCodeThis variable is set by-reference to int containing an error, if there was any.
Returns true if there are suspicious characters, false otherwise.
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"