php PHP中的密码强度检查
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Password strength check in PHP
提问by Byakugan
I am trying to create a password check script. I already have checks for email (for not allowed characters) like this:
我正在尝试创建密码检查脚本。我已经检查了电子邮件（不允许的字符），如下所示：
public function checkEmail($email)
{
if (filter_var($email, FILTER_VALIDATE_EMAIL))
return true;
else
return false;
}
So I am looking for a password validation function that checks passwords have at least one alphanumeric character, and one numeric character, and a minimum of 8 characters, and also provides error messages.
因此，我正在寻找一种密码验证功能，该功能可以检查密码是否至少包含一个字母数字字符和一个数字字符，并且至少包含 8 个字符，并且还提供错误消息。
回答by Jeroen
public function checkPassword($pwd, &$errors) {
$errors_init = $errors;
if (strlen($pwd) < 8) {
$errors[] = "Password too short!";
}
if (!preg_match("#[0-9]+#", $pwd)) {
$errors[] = "Password must include at least one number!";
}
if (!preg_match("#[a-zA-Z]+#", $pwd)) {
$errors[] = "Password must include at least one letter!";
}
return ($errors == $errors_init);
}
Edited version of this: http://www.cafewebmaster.com/check-password-strength-safety-php-and-regex
编辑版本：http: //www.cafewebmaster.com/check-password-strength-safety-php-and-regex
