表单操作将不会调用登录功能 [英] Form action won't call login function
本文介绍了表单操作将不会调用登录功能的处理方法，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
我有一个HTML登录表单，该表单的操作将发送到另一个PHP文件，该文件中应有一个用于将用户登录到该站点的功能.当提交表单导致该php文件时，它显示一个空白页面，就像它不会触发该函数一样.我在函数顶部放置了echo和die，但是仍然没有任何反应.
I have an HTML login form whose action sends to another PHP file where there is a function that is supposed to login user on to the site. When submited form leads to that php file but it shows an empty page like it doesn't trigger that function. I put echo and die on top of the function but still, nothing happens.
此外，当我在函数外回显某些内容时，它还会显示我在echo中输入的内容，因此它会调用正确的文件，只是不会加载函数.任何帮助表示赞赏.这是我的代码.
Also when I echo something outside of function it displays what I entered in echo, so it calls the right file just it won't load function. Any help is appreciated. Here is my code.
login.php
<?php
if ($_SERVER['REQUEST_METHOD'] == "POST") {
if (isset($_POST["submit"])) {
login_function();
}
}
?>
<!DOCTYPE HTML>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="/login_assets/css/style.css">
<link href="https://fonts.googleapis.com/css?family=Raleway:300,400,500&display=swap" rel="stylesheet">
<link href="https://fonts.googleapis.com/css?family=Open+Sans:400,600&display=swap" rel="stylesheet">
<link rel="stylesheet" href="/login_assets/css/media.css">
<script src="/login_assets/js/jquery.min.js"></script>
<script src="/login_assets/js/modernizr.custom.js"></script>
</head>
<body>
<header class="clear hBlack">
<div class="jLogo"><a href="/"><img src="/login_assets/images/logo.png" alt=""></a></div>
</header>
<div class="logArea clear">
<form action="custom_functions.php" method="post" enctype="application/x-www-form-urlencoded">
<div class="logbox">
<div class="box clear">
<h2>Members Area</h2>
<div class="logTypes">
<input type="text" name="username" class="logtextbox" placeholder="Username or email">
<span class="text-danger"><?php echo $username_error; ?></span>
<input type="password" name="password" class="logtextbox" placeholder="Password"><br>
<span class="text-danger"><?php echo $password_error; ?></span>
<!-- <input type="text" name="captcha" class="logtextbox" placeholder="Enter the code shown below"><br>
<img style="margin: 0 auto;" src="captcha.php">
<span class="text-danger"><?php echo $captcha_error; ?></span> -->
<div style="text-align: center">Remember my login: <input name="remember" type="checkbox"></div>
</div>
</div>
<input type="submit" value="submit" class="logBtn" name="submit"/>
</div>
</form>
</div>
<footer class="clear">
<p class="fNav"><a href="/">Home</a><span>|</span>
<a href="/">Log Out</a>
</p>
</footer>
</body>
</html>
custom_functions.php
<?php
//echo "AAAAAAAAA";
function validation($form_data)
{
$form_data = trim(stripcslashes(htmlspecialchars($form_data)) );
return $form_data;
}
function login_function() {
//echo "AAAAAAAAAA";
//die('!');
session_start();
require 'connection.php';
$username_error = "";
$password_error = "";
//$captcha_error = "";
$v_username = $_POST['username'];
$v_password = $_POST['password'];
//$v_captcha = $_POST['captcha'];
$username = validation($v_username);
$password = validation($v_password);
//$captcha = validation($v_captcha);
$remember = isset($_POST['remember']);
if (empty($username)) {
$username_error = "<p>Please enter your username!</p>";
}
if (empty($password)) {
$password_error = "<p>Please enter your password!</p>";
}
if (!empty($username) && !empty($password)) {
$sql = "SELECT * FROM member_auth WHERE username = :username";
//$sql = "SELECT * FROM member_auth LIMIT 1";
$stmt = $pdo->prepare($sql);
$stmt->bindValue(':username', $username);
$stmt->execute();
$user = $stmt->fetch(PDO::FETCH_ASSOC);
$cryptpass = $user['cryptpass'];
if($user === false){
$username_error = "<p>User doesn't exist</p>";
} elseif ($user) {
$newPass = crypt($password, $cryptpass);
if ($cryptpass == $newPass) {
$_SESSION['loggedin'] = TRUE;
$_SESSION['username'] = $username;
if ($remember == "on") {
setcookie("remember", $username, time()+3600);
}
header('Location: login_success.php');
} else {
$password_error = "<p>Password is not correct!</p>";
}
}
}
}
?>
推荐答案
将您的条件从同一页面移至custom_functions.php
Move your condition from same page to custom_functions.php
if ($_SERVER['REQUEST_METHOD'] == "POST"){
if(isset($_POST["submit"])) {
login_function();
}
}
或
<form action="" method="post" enctype="application/x-www-form-urlencoded">
这篇关于表单操作将不会调用登录功能的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
