无法在core php中使用MD5加密密码登录

Question

我想用core php在用户表中保存的凭据登录，我的密码以加密形式保存在数据库用户表中的MD5中，我想用电子邮件和密码登录，但当我加密了密码，而登录密码与数据库表密码不匹配时，请帮我，我如何使用加密的md5密码登录。这是我的密码。

index.html

<form action="login_admin.php" method="POST">
<div class="form-group">
<label class="label">Username</label>
<div class="input-group">
<input type="email" class="form-control" placeholder="email" name="email">
<div class="input-group-append">
<span class="input-group-text">
<i class="mdi mdi-check-circle-outline"></i>
</span>
</div>
</div>
</div>
<div class="form-group">
<label class="label">Password</label>
<div class="input-group">
<input type="password" class="form-control" placeholder="*********" name="pwd">
<div class="input-group-append">
<span class="input-group-text">
<i class="mdi mdi-check-circle-outline"></i>
</span>
</div>
</div>
</div>
<div class="form-group">
<input type="submit" name="submit" value="submit" class="btn btn-primary submit-btn btn-block">

</form>

login_admin.php

<?php
include('connection.php');

if(isset($_POST['submit'])){

$email = $_POST['email'];
$password = $_POST['pwd'];
$password = md5($_POST['pwd']);
$_SESSION['email'] = $email;
$_SESSION['password'] = $password;
$admin= $_SESSION['email'];

$query = "SELECT * FROM `user` Where (email = '$email' && role_id = 'admin' )";
$result = mysqli_query($conn, $query);  
$row = mysqli_fetch_assoc($result);
if($row > 0){
if($admin == $row['email'] && $password == $row['password']){
echo "test"; die;
}
}

else{
echo "Login Failed";
}

?>

connection.php

<?php
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "example_user";
$conn = new mysqli($servername, $username, $password, $dbname);
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}   
?>

Answer 1

如何取消清除密码

先阅读我的评论。

---

哈希

password_hash ( string $password , mixed $algo , array $options = ? ) : string|false

用法：

<?php echo password_hash('Hello world', PASSWORD_BCRYPT ) ?>

值：$password＝"；密码"；；；$algo＝"；密码算法"；；

有关更多信息：https://www.php.net/manual/en/password.constants.php

将密码与哈希版本进行比较##

password_verify ( string $password , string $hash ) : bool

用法：

<?php $text = "I am a php master!"; $hashed = password_hash($text, PASSWORD_BYCRIPT); echo $text . "<br>". $hashed . "<br>";
// password_verify returns a Boolean
if(password_Verify($text, $hashed)) echo "Correct";   
?>

值：

密码

The user's password.

散列

A hash created by password_hash().

有关更多信息：https://www.php.net/manual/en/function.password-verify.php