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.
참고: 이 확장 모듈은 PHP 5에서 제거되어, PECL로 이동되었습니다.
More information regarding CrackLib along with the library can be found at http://www.crypticide.org/users/alecm/.
In order to use these functions, you must compile PHP with Crack support by using the --with-crack[=DIR] option.
이 함수의 작동은 php.ini 설정에 영향을 받습니다.
For further details and definition of the PHP_INI_* constants see ini_set().
This example shows how to open a CrackLib dictionary, test a given password, retrieve any diagnostic messages, and close the dictionary.
참고: If crack_check() returns TRUE, crack_getlastmessage() will return 'strong password'.