The Spoofchecker class

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

Introduction

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

Spoofchecker {

/* Constants */

const integer SINGLE_SCRIPT_CONFUSABLE = 1 ;

const integer MIXED_SCRIPT_CONFUSABLE = 2 ;

const integer WHOLE_SCRIPT_CONFUSABLE = 4 ;

const integer ANY_CASE = 8 ;

const integer SINGLE_SCRIPT = 16 ;

const integer INVISIBLE = 32 ;

const integer CHAR_LIMIT = 64 ;

/* Methods */

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

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

The Spoofchecker class

Introduction

Class synopsis

Predefined Constants

Table of Contents