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@Clarence-pan
Created May 31, 2017 09:12
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一个安全地存储密码的方案
<?php
class User extends BaseModel
{
const PASSWORD_COST = 11; // 这里配置bcrypt算法的代价,根据需要来随时升级
const PASSWORD_ALGO = PASSWORD_BCRYPT; // 默认使用(现在也只能用)bcrypt
/**
* 验证密码是否正确
*
* @param string $plainPassword 用户密码的明文
* @param bool $autoRehash 是否自动重新计算下密码的hash值(如果有必要的话)
* @return bool
*/
public function verifyPassword($plainPassword, $autoRehash = true)
{
if (password_verify($plainPassword, $this->password)) {
if ($autoRehash && password_needs_rehash($this->password, self::PASSWORD_ALGO, ['cost' => self::PASSWORD_COST])) {
$this->updatePassword($plainPassword);
}
return true;
}
return false;
}
/**
* 更新密码
*
* @param string $newPlainPassword
*/
public function updatePassword($newPlainPassword)
{
$this->password = password_hash($newPlainPassword, self::PASSWORD_ALGO, ['cost' => self::PASSWORD_COST]);
$this->save();
}
}
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