Spoofchecker (class)

The Spoofchecker class

Introduction

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

This class is provided because Unicode contains large number of characters and incorporates the varied writing systems of the world and their incorrect usage can expose programs or systems to possible security attacks using characters similarity.

Provided methods alllow to check whether an individual string is likely an attempt at confusing the reader (spoof detection), such as "pаypаl" spelled with Cyrillic 'а' characters.

Class synopsis

public bool areConfusable ( string $str1 , string $str2 [, string &$error ] )

public __construct ( void )

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

public void setAllowedLocales ( string $locale_list )

public void setChecks ( long $checks )

Predefined Constants

Spoofchecker::SINGLE_SCRIPT_CONFUSABLE

Spoofchecker::MIXED_SCRIPT_CONFUSABLE

Spoofchecker::WHOLE_SCRIPT_CONFUSABLE

Spoofchecker::ANY_CASE

Spoofchecker::SINGLE_SCRIPT

Spoofchecker::INVISIBLE

Spoofchecker::CHAR_LIMIT

Table of Contents

• Spoofchecker::areConfusable — Checks if given strings can be confused
• Spoofchecker::__construct — Constructor
• Spoofchecker::isSuspicious — Checks if a given text contains any suspicious characters
• Spoofchecker::setAllowedLocales — Locales to use when running checks
• Spoofchecker::setChecks — Set the checks to run