介绍
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.
注:
该扩展已经从 PHP 5 中移出，然后移入到
PECL 仓库中。
安装
In order to use these functions, you must compile PHP with Crack support
by using the --with-crack[=DIR] option.
运行时配置
这些函数的行为受到全局配置文件 php.ini 的影响。
表格 1. Crack configuration options
| Name | Default | Changeable |
|---|
| crack.default_dictionary | NULL | PHP_INI_SYSTEM |
For further details and definition of the PHP_INI_* constants see
ini_set().
范例
This example shows how to open a CrackLib dictionary, test a given
password, retrieve any diagnostic messages, and close the dictionary.
例子 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);
?>
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