我正在为学校制作一个需要登录页面的网站项目。我已经将PHP设置为写入数据库，这没有问题。我的新问题是实际上没有任何东西会从数据库中读取。我在我的localhost上测试，连接很好。我收到的错误是电子邮件不正确，实际上它是有效的。希望你们能为我解决一个简单的问题！谢谢！
PHP：
<?php
//Setup our DB connection
include('../../connect/local-connect.php');
// Get the user entered elements
$email = $_POST['email'];
$pword = $_POST['password'];
// email query
$query = "SELECT email FROM project WHERE email = '$email'";
//Run email query
$result = mysqli_query($dbc, $query) or die('Read error - email');
// # of results
if (mysqli_num_rows($result) == 0)
{
header('Location:login.php?logerror=1');
exit;
}
//If we got here, we have validated the email
// Build the username query
$query = "SELECT * FROM project WHERE email = '$email' AND password = '$pword'";
// Run the password query
$result = mysqli_query($dbc, $query) or die('Read error - password');
// Did we get a row?
if (mysqli_num_rows($result) == 0)
{
header('Location:login.php?logerror=2');
exit;
}
// If we got here, we have validated an email and password combo.
// Close the DB connection
mysqli_close ($dbc);
// Start a PHP session
session_start();
//Get and store our session variables
$row = mysqli_fetch_array($result);
$_SESSION['sname']=$row['name'];
header('Location:custwelcome.php');
exit;
// Pass a '3' back to login.php for testing (Keep this code at the bottom!)
header('Location:login.php?logerror=3');
exit;
?>
HTML：
<!DOCTYPE html>
<!--
XXXX
login.php
-->
<?php
// Start a PHP session
session_start();
// Check to see if user is already logged in
if(isset($_SESSION["sname"]))
{
header('Location:custwelcome.php');
exit;
}
?>
<html lang="en">
<head>
<!-- Meta tag -->
<meta name="robots" content="noindex.nofollow" />
<meta charset="utf-8" />
<!-- Link tag for CSS -->
<link type="text/css" rel="stylesheet" href="../stylesheet/project.css" />
<!-- Javascript tags -->
<script type="text/javascript" src="../js/messages.js"></script>
<!-- Web Page Title -->
<title>Login Page</title>
</head>
<body>
<div id="header">
<img src="../images/logo.png" alt="Logo" />
<p class="sh1">Shoe Source Unlimited</p>
<p class="sh2">Your source for lightning sales of this season's hot shoes! </p>
<p class="sh3">LeAndra Marx</p>
</div>
<div id="navbar">
<ul id="nav">
<li>
<a href="../homepage.htm">Home</a>
</li>
<li>
<a href="#">Men's</a>
<ul>
<li><a href="../sneakers.htm">Sneakers</a></li>
<li><a href="../loafers.htm">Loafers</a></li>
<li><a href="../athletic.htm">Athletic</a></li>
</ul>
</li>
<li>
<a href="#">Women's</a>
<ul>
<li><a href="../boots.htm">Boots</a></li>
<li><a href="../heels.htm">Heels</a></li>
<li><a href="../sandals.htm">Sandals</a></li>
</ul>
</li>
<li>
<a href="../about.htm">About Us</a>
</li>
<li>
<a href="../signup.htm">Sign Up</a>
</li>
<li>
<a href="login.php">Log In</a>
</li>
</ul>
</div>
<div id="external">
<p>
<a href="https://twitter.com/XXXXX" onclick="window.open(this.href); return false;">
<img src="../images/twitter.jpg" alt="twitter" />
</a>
</p>
<p>Follow us on Twitter!</p>
<br/>
<p>
<a href="http://www.facebook.com/ShoeSourceUnlimited" onclick="window.open(this.href); return false;">
<img src="../images/facebook.png" alt="facebook" />
</a>
</p>
<p>Like us on Facebook!</p>
<br/>
<a href="email/projectem.htm">
<img src="../images/email.jpg" alt="pinkemail" />
</a>
<p> Send us an email!</p>
</div>
<div id="main">
<p>Sign in below to start making purchases!</p>
</div>
<p id="registered"> Don't have an account? Sign up <a href="../signup.htm">here</a>!
<div id="userform">
<p class="fh">Log In Here</p>
<form id="loginform" action="logincheck.php" method="post">
<?php
// Check return codes from logincheck.php
if ($_GET["logerror"] == 1)
{
echo '<p class="loginerror">Invalid Email!</p>';
}
if ($_GET["logerror"] == 2)
{
echo '<p class="loginerror">Invalid Password!</p>';
}
if ($_GET["logerror"] == 3)
{
echo '<p class="loginerror">Returned from logincheck</p>';
}
?>
<p>
<!--Email -->
<label for="email">Email:</label>
<input type="email" id="email" name="email" required autofocus
title="Email: 6-59 characters, lowercase, valid email only!"
pattern="[a-z0-9.-_]+@[a-z0-9-]+\.[a-z]{2,6}"
maxlength="60"
onfocus="emailmsg()" />
<br />
<!--Password -->
<label for="password">Password:</label>
<input type="password" id="password" name="password" required
title="Password: 5-15 characters, U/L, 0-9, . - _ ! $ only!"
pattern="[a-zA-Z0-9.-_!$]{5,15}"
onchange="form.reenter.pattern=this.value;"
onfocus="passmsg()"/>
<br />
<!-- Build buttons so that they are consistent throughout the site
never use get method for confidential data-->
<p class="submit">
<input type="submit"
value=" Log In! "
onfocus="signmsg()"/>
<span class="reset">
<input type="reset" value=" Clear " onclick="history.go(0)"
onfocus="clearmsg()"/>
</span>
</p>
</form>
</div>
<div id="messages">
<p></p>
</div>
<div id="footer">
<p>
©2014, XXXX
</p>
</div>
</body>
</html>
如果需要查看更多文件，请告诉我，我只想知道这两个文件存在的问题。
我的解决方案：我所做的就是更改我的表名，它开始工作了。我觉得这很好！感谢所有试图提供帮助的人：）
答案 0 :(得分：0)
你的数据库连接好吗？首先检查连接是否完美。
在数据库连接文件的顶部，请在错误报告上找出错误
error_reporing(E_ALL);
ini_set('display_errors',1);
并且在数据库连接之后使用以下语法..如果连接失败，您将获得所有
mysql_connect('host','username','password') OR die(mysql_error());
mysql_select_db('dbName') OR die(mysql_error());
答案 1 :(得分：0)
<?php
$con=mysqli_connect("host","username","password","my_db");
if (mysqli_connect_errno()) {
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
?>
for mysqli