Руководство по PHP
Пред.След.

XI. Crack functions

Введение

These functions allow you to use the CrackLib library to test the 'strength' of a password. The 'strength' of a password is tested by that checks length, use of upper and lower case and checked against the specified CrackLib dictionary. CrackLib will also give helpful diagnostic messages that will help 'strengthen' the password.

Требования

More information regarding CrackLib along with the library can be found at http://www.users.dircon.co.uk/~crypto/.

Установка

In order to use these functions, you must compile PHP with Crack support by using the --with-crack[=DIR] option.

Настройка во время выполнения

Поведение этих функций находится в зависимости от установок в php.ini.

Таблица 1. Crack configuration options

NameDefaultChangeable
crack.default_dictionaryNULLPHP_INI_SYSTEM
For further details and definition of the PHP_INI_* constants see ini_set().

Типы ресурсов

Данное расширение не определяет никакие типы ресурсов.

Предопределенные константы

Данное расширение не определяет никакие константы.

Примеры

This example shows how to open a CrackLib dictionary, test a given password, retrieve any diagnostic messages, and close the dictionary.

Пример 1. CrackLib example

<?php
// Open CrackLib Dictionary
$dictionary = crack_opendict('/usr/local/lib/pw_dict')
     or die('Unable to open CrackLib dictionary');

// Perform password check
$check = crack_check($dictionary, 'gx9A2s0x');

// Retrieve messages
$diag = crack_getlastmessage();
echo $diag; // 'strong password'

// Close dictionary
crack_closedict($dictionary);
?>

Замечание: If crack_check() returns TRUE, crack_getlastmessage() will return 'strong password'.

Содержание
crack_check -- Performs an obscure check with the given password
crack_closedict -- Closes an open CrackLib dictionary
crack_getlastmessage -- Returns the message from the last obscure check
crack_opendict -- Opens a new CrackLib dictionary
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cpdf_translateУровень вышеcrack_check