php登陆页的密码处理方式分享

{
/**
* 检测用户密码
*
* @return boolean
*/
public function validatePassword ($password)
{
return $this->hashPassword($this->password) === $password;
} /**
* 密码进行加密
* @return string password
*/
public function hashPassword ($password)
{
return md5($password);
} }

public function validatePassword($password) {
return $this->hashPassword($password,$this->salt) === $this->password;
} public function hashPassword($password,$salt) {
return md5(md5($password) . $salt);
} public function generateSalt() {
$str = '1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
$len = strlen($str) - 1;
$string = '';
for ($i = 0; $i < 6; $i++) {
$string .= $str[mt_rand(0,$len)];
}
return $string;
}

public function validatePassword($password) { return $this->hashPassword($password,$this->salt)===$this->password;
}
public function hashPassword($password,$salt)
{
return md5($salt.$password);
}
protected function generateSalt()
{
return uniqid('',true);
}