codeigniter +需要字母和数字的密码

问题描述

我想使用表单验证来要求具有BOTH字母和数字字符的密码。这里是我到目前为止所做的：

I'd like to use form validation to require a password that has BOTH alpha and numeric characters. Here's what I've come up with so far:

$this->form_validation->set_rules('password', 'Password', 'required|matches[passconf]|min_length[8]|alpha_numeric');

问题是alpha_numeric要求密码只包含字母或数字，需要两者。

The issue is that "alpha_numeric" requires that the password only contain letters or numbers, it doesn't require both. Going for the stronger password option here.

推荐答案

您可以设置：

public function password_check($str)
{
   if (preg_match('#[0-9]#', $str) && preg_match('#[a-zA-Z]#', $str)) {
     return TRUE;
   }
   return FALSE;
}

然后，更新规则以使用它：

Then, update your rule to use it:

$this->form_validation->set_rules('password', 'Password', 'required|matches[passconf]|min_length[8]|alpha_numeric|callback_password_check');

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