Question

基本问题，但我一直都在失败。检查了类似的主题，但没有接近解决方案，所以请不要重定向我只是指出我错过了什么。谢谢。

<?php 

$hashed_password = "";
$con = mysqli_connect("localhost", "root", "", "testTable");

if (isset($_POST["reg_button"])){

$password = ($_POST["reg_password"]);

$hashed_password = password_hash($password, PASSWORD_DEFAULT);

$query = mysqli_query($con, "INSERT INTO user VALUES('', '$hashed_password')");

}
?>

<!DOCTYPE html>
<html>
<head>
    <title>register</title>
</head>
<body>
    <form action="register.php" method="POST">
        <input type="password" name="reg_password" placeholder="Password">
        <br><br>
        <input type="submit" name="reg_button" value="Register">
    </form>
    <br>
    <form action="login.php" method="POST">
        <input type="password" name="login_password" placeholder="Password">
        <br><br>
        <input type="submit" name="login_button" value="Login">
    </form>
</body>
</html>

这是注册部分，它运作完美。提供的密码将被收集并存储在数据库中。

<?php

include "register.php";

$con = mysqli_connect("localhost", "root", "", "testTable");

if(isset($_POST["login_button"])){

    $password = password_verify($_POST["login_password"], $hashed_password);

    $checkDB = mysqli_query($con, "SELECT * FROM user WHERE password = '$password'");

    $checkLogin = mysqli_num_rows($checkDB);

    if($checkLogin == 1){
        $row = mysqli_fetch_array($checkDB);

        echo "Welcome";
    }

    else {
        echo "Password incorrect";
    }
}
?>

这是登录部分，它总是失败。我怀疑以下片段是罪魁祸首：

$password = password_verify($_POST["login_password"], $hashed_password);

但不知道如何修复它。

任何帮助都会很棒。谢谢！

更新代码：

register.php：

<?php 

$hashed_password = "";
$name = "";
$con = mysqli_connect("localhost", "root", "", "testTable");

if (isset($_POST["reg_button"])){

    $password = ($_POST["reg_password"]);
    $name = ($_POST["reg_name"]);

    $hashed_password = password_hash($password, PASSWORD_DEFAULT);

    $query = mysqli_query($con, "INSERT INTO user VALUES('', '$name','$hashed_password')");

}
?>

<!DOCTYPE html>
<html>
<head>
    <title>register</title>
</head>
<body>
    <form action="register.php" method="POST">
        <input type="text" name="reg_name" placeholder="Name">
        <br><br>
        <input type="password" name="reg_password" placeholder="Password">
        <br><br>
        <input type="submit" name="reg_button" value="Register">
    </form>
    <br>
    <form action="login.php" method="POST">
        <input type="text" name="login_name" placeholder="Name">
        <br><br>
        <input type="password" name="login_password" placeholder="Password">
        <br><br>
        <input type="submit" name="login_button" value="Login">
    </form>
</body>
</html>

的login.php：

<?php

include "register.php";

$con = mysqli_connect("localhost", "root", "", "testTable");

if(isset($_POST["login_button"])){

    $name = $_POST['login_name'];
    $password = $_POST['login_password'];

    $checkDB = mysqli_query($con, "SELECT * FROM user WHERE name = '$name'");

    $passwordField = null;

    while($getRow = mysqli_num_rows($checkDB)){
        $passwordField = $getRow['password']; // Get hashed password
    }

    if(password_verify($password, $passwordField)){
        echo('Correct');
    }else{
        echo('Wrong');
    }
}
?>

Answer 1

下面你从哪里获得$ hashed_password？即使你包含了register.php，它也会做任何事情，因为这些值没有设置。

password_verify

首先需要从数据库中获取它。

其次，$ sudo mongos --logpath "mongos-1.log" --configdb localhost:57040,localhost:57041,localhost:57042 --fork FailedToParse: mirrored config server connections are not supported; for config server replica sets be sure to use the replica set connection string try 'mongos --help' for more information返回true或false，所以即使设置了$ hashed_password，$ password也是布尔值。

Answer 2

您可以通过while循环和mysqli_fetch_array（）来完成此操作。这必须解决你的问题：[更新]

<?php

$con = mysqli_connect("localhost", "root", "", "testtable");

if(isset($_POST["login_button"])){

    // $password = password_verify($_POST["login_password"], $hashed_password);
    $password = $_POST['password'];
    $checkDB = mysqli_query($con, "SELECT * FROM user");

    while($getRow = mysqli_fetch_array($checkDB)){
        $passwordRow = $getRow['password'];
    }

    if(password_verify($password, $passwordRow) === TRUE){
        echo('Welcome');
    }else{
    echo('Wrong credentials');
    }
}
?>

php password_hash和password_verify失败

2 个答案: