XI. Crack Functions

Εισαγωγή

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.

Σημείωση: This extension has been removed as of PHP 5 and moved to the PECL repository.

Απαιτήσεις

More information regarding CrackLib along with the library can be found at http://www.crypticide.org/users/alecm/.

Εγκατάσταση

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

Ρυθμίσεις κατά την εκτέλεση

Η συμπεριφορά αυτών των συναρτήσεων επιρεάζεται από τις ρυθμίσεις στο php.ini.

Πίνακας 1. Crack configuration options

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

Τύποι Πόρων

Αυτή η επέκταση δεν έχει resource τύπους ορισμένους.

Προκαθορισμένες Σταθερές

Αυτή η επέκταση δεν έχει σταθερές ορισμένες.

Παραδείγματα

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

Παράδειγμα 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);
?>

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

Πίνακας Περιεχομένων
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