在模式框中保留用户登录错误 [英] Keep user login error in modal box
本文介绍了在模式框中保留用户登录错误的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
<?php
require('db.php');
session_start();
// If form submitted, insert values into the database.
if (isset($_POST['username'])){
$username = stripslashes($_REQUEST['username']); // removes backslashes
$username = mysqli_real_escape_string($con,$username); //escapes special characters in a string
$password = stripslashes($_REQUEST['password']);
$password = mysqli_real_escape_string($con,$password);
//Checking is user existing in the database or not
$query = "SELECT * FROM `users` WHERE username='$username' and password='".md5($password)."'";
$result = mysqli_query($con,$query) or die(mysqli_error());
$rows = mysqli_num_rows($result);
if($rows==1){
$_SESSION['username'] = $username;
header("Location: index.php"); // Redirect user to index.php
}
else{
echo "<div class='form'><h3>Username/password is incorrect.</h3><br/>Click here to <a href='login.php'>Login</a></div>";
}
}else{
?>
<div class="container">
<div class="col-lg-3 mx-auto"></div>
<div class="col-lg-4 mx-auto"></div>
<div class="col-lg-3 mx-auto"></div>
<div class="row vertical-center-row">
<div class="col-lg-5 mx-auto"><br/>
<h3 class="text-center">LOGIN HERE</h3>
<div class="form">
<form action="" method="post" name="login" style="text-align:center">
<input class="unbox" type="text" name="username" placeholder="Username" required /><br/><br/>
<input class="unbox" type="password" name="password" placeholder="Password" required /><br/><br/>
<input name="submit" type="submit" value="Login" />
</form>
<p>Not registered yet? <a href='registration.php'>Register Here</a></p>
<br /><br />
</div>
</div>
</div>
</div>
<?php } ?>
我尝试过:
What I have tried:
<?php
require('db.php');
session_start();
// If form submitted, insert values into the database.
if (isset($_POST['username'])){
$username = stripslashes($_REQUEST['username']); // removes backslashes
$username = mysqli_real_escape_string($con,$username); //escapes special characters in a string
$password = stripslashes($_REQUEST['password']);
$password = mysqli_real_escape_string($con,$password);
//Checking is user existing in the database or not
$query = "SELECT * FROM `users` WHERE username='$username' and password='".md5($password)."'";
$result = mysqli_query($con,$query) or die(mysqli_error());
$rows = mysqli_num_rows($result);
if($rows==1){
$_SESSION['username'] = $username;
header("Location: index.php"); // Redirect user to index.php
}
else{
<pre><script type="text/javascript">
$(document).ready(function(){
$("#myModal").modal('show');
});
</script>
}
}否则{
?>
}
}else{
?>
< h3 class =text-center>在这里登录
LOGIN HERE
<!-- Modal -->
<div id="myModal" class="modal fade" role="dialog">
<div class="modal-dialog">
<!-- Modal content-->
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal">×</button>
<h4 class="modal-title">Modal Header</h4>
</div>
<div class="modal-body">
<p>User name/password is wrong</p>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>
<?php}?>
<?php } ?>
推荐答案
_POST ['username'])){
_POST['username'])){
username = stripslashes(
username = stripslashes(
_REQUEST ['username']); //删除反斜杠
_REQUEST['username']); // removes backslashes
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