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为什么Ajax调用后我的php类无法正常工作

[英]Why aren't my php classes working after an ajax call

当用户未登录时,这是我的index.php文件,它会加载登录页面,否则会加载应用程序

$user = new User();
?>

<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8" />
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        <title>Page Title</title>
        <meta name="viewport" content="width=device-width, initial-scale=1">

        <link rel="stylesheet" type="text/css" media="screen" href="assets/css/master.css"/>
        <script src="assets/js/functions.js?<? filectime('assets/js/functions.js') ?>"></script>

        <script src="https://code.jquery.com/jquery-3.3.1.min.js" integrity="sha256-FgpCb/KJQlLNfOu91ta32o/NMZxltwRo8QtmkMRdAu8=" crossorigin="anonymous"></script>

        <script src="assets/vendor/jquery-validation/jquery.validate.min.js"></script>
        <script src="assets/vendor/jquery-validation/additional-methods.min.js"></script>

        <link rel="stylesheet" href="assets\vendor\bootstrap\dist\css\bootstrap.css">
    </head>
    <body>
        <div class="main-wrapper container-fluid">
        <?
        if($user->isLoggedIn()) {
            include_once 'app/index.php';
        } else {
            include_once 'files/auth/login.php';
        }
        ?>
        </div>
    </body>
</html>

这是在用户未登录时加载的login.php文件

 <div class="login-card">
    <form id="sign-in-form">
        <h2>Sign in</h2>
        <div class="form-group">
            <input type="text" name="username" required class="form-control" placeholder="Username">
            <input type="password" name="password" required class="form-control" placeholder="Password">
            <button type="submit" class="btn btn-primary btn-lg btn-block">sign in</button>
        </div>
    </form>
</div>
<div class="login-links">
    <a href="" id="register-link">Create an account</a>
    <a href="" class="grid-justify-end">Forgot password</a>
</div>

<script src="files/auth/js/login.js?<?= filemtime('files/auth/js/login.js') ?>"></script>

当用户单击创建帐户时,将调用Ajax函数并将其加载到main-wrapper div中的注册页面,但是当将其加载到我的php类中时,用户是否感到困惑? 并且index.php中的变量$ user也没有防御

尝试在注册文件中包含包含用户类的文件。

像这样include 'path/to/users_phph_file/Users.php'; $user = new User(); include 'path/to/users_phph_file/Users.php'; $user = new User();

如果您的文件夹结构如下所示:

root -classes --users.php index.php

然后include 'classes/Users.php'; $user = new User(); include 'classes/Users.php'; $user = new User();

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