Question

方案

我正在尝试通过PDO和PHP更改当前登录的mysql用户的用户名，并且无法更改登录用户的密码（在mysql用户表中）。

我只能在我的应用用户表中更改此功能，我希望使用相同的密码。

注意

我已成功通过mysql命令行（Windows命令提示符）进行更改，但当我尝试通过我的PHP脚本（changePassword）更改此密码时，旧密码仍然存在。

问题

如何更改PHP / PDO中的密码？

    public function changePassword($username, $password, $password1, $password2)
    {
        $userPassExists = $this->confirmUserNamePassword($username, $password);
        if ($userPassExists)
        {
            if ($password1 == '' or $password2 == '')
            {
                echo "Complete all entries";
            }
            else if ($password1 != $password2)
            {
                echo "New Passwords must match";
            }
            else
            {
                    $sql = $this->dbh->prepare("UPDATE users set password = ':password' where username = ':username'");
                    $sql->execute(array(':password' => $this->createPwdHash($password1), ':username' => $username));


                    $sql = $this->dbh->prepare("UPDATE mysql.user SET Password=PASSWORD(':password') WHERE user=':username' AND Host='localhost';");
                    $sql->execute(array(':username', $username, ':password' => $password1));

                    $sql = $this->dbh->prepare("flush privileges");
                    $sql->execute();

                    $this->dbh = null;
                    $this->dbh = $this->getConnection($username, $password1);
                    var_dump($this->dbh);
            }
        }
        else
        {
                echo "Incorrect Username or Password";
        }
    }

修改

按照以下链接的语法，我将我的函数修改为下面的代码，但现在它会产生警告。

警告：PDOStatement :: execute（）：SQLSTATE [HY093]：参数无效 number：绑定变量的数量与令牌的数量不匹配第191行的script.php

第191行

 $sql = $this->dbh->prepare("set password for :username@'localhost' = PASSWORD(:password)");

链接 https://stackoverflow.com/a/22721480/1691103

    public function changePassword($username, $password, $password1, $password2)
    {
        $userPassExists = $this->confirmUserNamePassword($username, $password);
        if ($userPassExists)
        {
            if ($password1 == '' or $password2 == '')
            {
                echo "Complete all entries";
            }
            else if ($password1 != $password2)
            {
                echo "New Passwords must match";
            }
            else
            {
                    $this->resetPassword($username, $password1);
                    $this->dbh = null;
                    $this->dbh = $this->getConnection($username, $password1);
                    var_dump($this->dbh);
            }
        }
        else
        {
                echo "Incorrect Username or Password";
        }
    }


    public function resetPassword($username, $password)
    {
            $sql = $this->dbh->prepare("UPDATE users set password = :password where username = :username");
            $sql->execute(array(':password' => $this->createPwdHash($password), ':username' => $username));

            $sql = $this->dbh->prepare("set password for :username@'localhost' = PASSWORD(:password)");
            $sql->execute(array(':username', $username, ':password' => $password));
    }

Answer 1

执行命令

 $sql->execute(array(':username', $username, ':password' => $password1));

应该阅读

 $sql->execute(array(':username' => $username, ':password' => $password1));

PHP / PDO - 如何通过PHP和PDO更改登录用户的密码并刷新连接句柄？

1 个答案: