我有两个项目，其中一个用于检查用户名和密码是否存在于数据库中，使用了password_verify()函数，而另一个则可以注册后登录。但是在第二个项目中，尽管我写了相同的代码但更改了表名，但函数password_verify始终返回false。我会发布这个项目，所以如果有人能帮忙，请联系我。
我已经检查了它正常连接到数据库并正确返回电子邮件结果，但是当比较哈希密码与输入的密码时，它总是错误的。
Index.php是主页，只包含两行php代码：
1. include("signup.php");
2. include("login.php"); Connection.php
``` Index ```
输出$newPass是：" $2y$10$dw0AtEExMc41p4nUB3W9kOOWTcNZmQev9jM4emNn7oQNODfu6Ld.q" 输出$LogPass是：" $2y$10$biz6Z5nxsMZXNf7p3ebqw.pksPb1VhWEmoan776rMqOC7VcFRQbrK"
Index.php是主页，只包含两行php代码：
1. include("signup.php");
2. include("login.php"); Connection.php
<?php
$server="localhost";
$db_username="myusername";
$db_password="mypassword";
$db="test_db";
$conn=mysqli_connect($server,$db_username,$db_password,$db);
if(!$conn)
die ("Connection Failed: ".mysqli_connect_error());
?>
signup.php
<?php
session_start();
if(isset($_POST['signup']))
{
function validateFormData($formData)
{
$formData=trim(stripcslashes(htmlspecialchars($formData)));
return $formData;
}
$email=validateFormData($_POST['email']);
$password=validateFormData($_POST['password']);
if(!$_POST['email'])
$error.="Please enter an email<br>";
else if(!filter_var($_POST['email'],FILTER_VALIDATE_EMAIL))
{
$error.="Please enter a valid email<br>";
}
if(!$_POST['password'])
$error.="Please enter a password<br>";
else
{
if(strlen($_POST['password'])<8)
$error.="Password must contain at least 8 characters<br>";
if(!preg_match('`[A-Z]`',$_POST['password']))
$error.="Password must contain at least one capital letter<br>";
}
if($error)
{
echo "<div class='alert alert-danger text-center lead'><a class='close red' data-dismiss='alert'>×</a>".$error."</div>";
}
else
{
include('connection.php');
$query="SELECT * FROM `diary` WHERE email='".mysqli_real_escape_string($conn,$email)."'";
$result=mysqli_query($conn,$query);
$results=mysqli_num_rows($result);
if($results)
echo "<div class='alert alert-danger text-center lead'>This email already exists, do you want to log in?<a class='close red' data-dismiss='alert'>×</a></div>";
else
{
$selectUser=mysqli_real_escape_string($conn,$email);
$hashedPass=password_hash($password,PASSWORD_DEFAULT);
$query="INSERT INTO `diary`(`email`, `password`) VALUES ('$selectUser','$hashedPass')";
mysqli_query($conn,$query);
echo "<div class='alert alert-success text-center lead'>You've been signed up!<a class='close green' data-dismiss='alert'>×</a></div>";
$_SESSION['id']=mysqli_insert_id($conn);
}
}
}
?>
login.php
<?php
if(isset($_POST['login']))
{
function validateFormData($formData)
{
$formData=trim(stripcslashes(htmlspecialchars($formData)));
return $formData;
}
$formEmail=validateFormData($_POST['loginEmail']);
$formPass=validateFormData($_POST['loginPassword']);
$newPass=password_hash($formPass,PASSWORD_DEFAULT);
echo $newPass;
include("connection.php");
$query="Select * from diary where email='$formEmail' ";
$result=mysqli_query($conn,$query);
if(mysqli_num_rows($result)>0)
{
while($row=mysqli_fetch_assoc($result))
{
$LogEmail= $row['email'];
$LogPass= $row['password'];
echo "<br>".$LogPass;
}
if(password_verify($newPass,$LogPass))
{
echo "<br>Correct Password";
}
else
echo "<br>Not Correct";
}
}
?>
``` Index ```
输出$newPass是：" $2y$10$dw0AtEExMc41p4nUB3W9kOOWTcNZmQev9jM4emNn7oQNODfu6Ld.q" 输出$LogPass是：" $2y$10$biz6Z5nxsMZXNf7p3ebqw.pksPb1VhWEmoan776rMqOC7VcFRQbrK"
<?php
include("signup.php");
include("login.php");
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description" content="">
<meta name="author" content="">
<title>Secret Diary</title>
<link rel="stylesheet" href="css/Normalize.css">
<link rel="stylesheet" href="bootstrap/css/bootstrap.min.css">
<link rel="stylesheet" href="css/style.css">
<!--[if IE]>
<script src="https://cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.3/html5shiv.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/respond.js/1.4.2/respond.min.js"></script>
<![endif]-->
</head>
<body>
<div class="container">
<form class="form-horizontal emailForm" role="form" method="post" action="<?php echo htmlspecialchars($_SERVER['PHP_SELF']);?>">
<legend><h1 class="text-center">Sign Up</h1></legend>
<div class="form-group">
<label class="control-label col-sm-2" for="email" >Email:</label>
<div class="col-sm-10">
<input type="email" class="form-control" style="width:90%" id="email" placeholder="Enter Email" name="email" value="<?php echo addslashes($_POST['email']);?>">
</div>
</div>
<div class="form-group">
<label class="control-label col-sm-2" for="pwd">Password:</label>
<div class="col-sm-10">
<input type="password" class="form-control" style="width:90%" id="pwd" placeholder="Password" name="password">
</div>
</div>
<div class="form-group">
<div class="col-sm-offset-2 col-sm-10">
<button type="submit" class="btn btn-success " id="btnClick" name="signup">Sign Up</button>
</div>
</div>
</form><!--SIGN UP-->
<form class="form-horizontal emailForm" role="form" method="post" action="<?php echo htmlspecialchars($_SERVER['PHP_SELF']);?>">
<legend><h1 class="text-center">Log In</h1></legend>
<div class="form-group">
<label class="control-label col-sm-2" for="LogInEmail" >Email:</label>
<div class="col-sm-10">
<input type="email" class="form-control" style="width:90%" id="LogInEmail" placeholder="Enter Email" name="loginEmail" value="<?php echo addslashes($_POST['loginEmail']);?>">
</div>
</div>
<div class="form-group">
<label class="control-label col-sm-2" for="LogInPassword">Password:</label>
<div class="col-sm-10">
<input type="password" class="form-control" style="width:90%" id="LogInPassword" placeholder="Password" name="loginPassword">
</div>
</div>
<div class="form-group">
<div class="col-sm-offset-2 col-sm-10">
<button type="submit" class="btn btn-success " id="btnClick" name="login">Log In</button>
</div>
</div>
</form><!--LOG IN-->
</div>
<script src="js/JQuery.min.js"></script>
<script src="bootstrap/js/bootstrap.min.js" type="text/javascript"></script>
<script src="js/script.js" type="text/javascript"></script>
</body>
</html>