Spoofchecker
PHP Manual

Spoofchecker::isSuspicious

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

Spoofchecker::isSuspiciousChecks if a given text contains any suspicious characters

Description

public bool Spoofchecker::isSuspicious ( string $text [, string &$error ] )

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

Parameters

text

String to test.

error

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

Return Values

Returns TRUE if there are suspicious characters, FALSE otherwise.

Examples

Example #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"


Spoofchecker
PHP Manual