Question

我已经创建了一个网站，并且希望某些用户能够在看到需要更改的内容后登录并编辑内容。我正在使用password_hash作为密码。

但是现在我对如何让这些用户编辑网站上的内容感到困惑，例如说我有以下代码：

<div class="-container-white" style="padding:128px 16px" id="charities">
  <h3 class="-center">SUPPORTING CHARITIES</h3>

  <p>Over the years we have been helping raise money for a number of charities.</p>
  <p>These include:</p>
  <ul>
    <li>Cash For Kids</li>
    <li>Cancer Research</li>
</ul>

<p>We also have helped numerous organisations out by donating products they can use in their raffles</p>
<p> If you know of any charities or would like to discuss having products donated for raffles please do not hesitate to get in touch</p>


<p>We are proud to to support these charities and can not thank you, customers, enough for helping us do this</p>


  <div class="-row-padding -center" style="margin-top:64px">

  </div>
</div>

现在，拥有这些用户的目的是使网站更新变得更容易，因此，如果他们发现错误，可以轻松地对其进行更改，而无需要求我输入代码并进行更改。为了使这种情况发生，我需要更改什么，即一旦其中一个管理员用户登录后，就可以对其进行编辑。

如果有帮助，这是我的登录页面，其中包含sql代码：

<?php
// Initialize the session
session_start();

// Check if the user is already logged in, if yes then redirect him to welcome page
if(isset($_SESSION["loggedin"]) && $_SESSION["loggedin"] === true){
    header("location: welcome.php");
    exit;
}

// Include config file
require_once "config.php";

// Define variables and initialize with empty values
$username = $password = "";
$username_err = $password_err = "";

// Processing form data when form is submitted
if($_SERVER["REQUEST_METHOD"] == "POST"){

    // Check if username is empty
    if(empty(trim($_POST["username"]))){
        $username_err = "Please enter username.";
    } else{
        $username = trim($_POST["username"]);
    }

    // Check if password is empty
    if(empty(trim($_POST["password"]))){
        $password_err = "Please enter your password.";
    } else{
        $password = trim($_POST["password"]);
    }

    // Validate credentials
    if(empty($username_err) && empty($password_err)){
        // Prepare a select statement
        $sql = "SELECT id, email, password, last_name, first_name username, FROM admin_users WHERE username = ?";

        if($stmt = mysqli_prepare($link, $sql)){
            // Bind variables to the prepared statement as parameters
            mysqli_stmt_bind_param($stmt, "s", $param_username);

            // Set parameters
            $param_username = $username;

            // Attempt to execute the prepared statement
            if(mysqli_stmt_execute($stmt)){
                // Store result
                mysqli_stmt_store_result($stmt);

                // Check if username exists, if yes then verify password
                if(mysqli_stmt_num_rows($stmt) == 1){                    
                    // Bind result variables
                    mysqli_stmt_bind_result($stmt, $id, $username, $hashed_password);
                    if(mysqli_stmt_fetch($stmt)){
                        if(password_verify($password, $hashed_password)){
                            // Password is correct, so start a new session
                            session_start();

                            // Store data in session variables
                            $_SESSION["loggedin"] = true;
                            $_SESSION["id"] = $id;
                            $_SESSION["username"] = $username;                            

                            // Redirect user to welcome page
                            header("location: welcome.php");
                        } else{
                            // Display an error message if password is not valid
                            $password_err = "The password you entered was not valid.";
                        }
                    }
                } else{
                    // Display an error message if username doesn't exist
                    $username_err = "No account found with that username.";
                }
            } else{
                echo "Oops! Something went wrong. Please try again later.";
            }
        }

        // Close statement
        mysqli_stmt_close($stmt);
    }

    // Close connection
    mysqli_close($link);
}
?>

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Login</title>
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.css">
    <style type="text/css">
        body{ font: 14px sans-serif; }
        .wrapper{ width: 350px; padding: 20px; }
    </style>
</head>
<body>
    <div class="wrapper">
        <h2>Login</h2>
        <p>Please fill in your credentials to login.</p>
        <form action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]); ?>" method="post">
            <div class="form-group <?php echo (!empty($username_err)) ? 'has-error' : ''; ?>">
                <label>Username</label>
                <input type="text" name="username" class="form-control" value="<?php echo $username; ?>">
                <span class="help-block"><?php echo $username_err; ?></span>
            </div>    
            <div class="form-group <?php echo (!empty($password_err)) ? 'has-error' : ''; ?>">
                <label>Password</label>
                <input type="password" name="password" class="form-control">
                <span class="help-block"><?php echo $password_err; ?></span>
            </div>
            <div class="form-group">
                <input type="submit" class="btn btn-primary" value="Login">
            </div>
        </form>
    </div>    
</body>
</html>

在我可以正常工作之前，welcome.php页面只是目前的标准页面。

Answer 1

允许登录用户编辑您网站的HTML，以便对网站的所有其他用户进行更改，这是一件相当复杂的事情。

如果您要这样做，那么您要走的路要走，还有很长的路要走。

您需要实现的一些事情：

您需要确定网站上哪些文本是可编辑的，哪些文本不可编辑
需要将可编辑部分从HTML中提取出来，或者存储到平面文件存储中，或者更可能是数据库中，而您已经在使用sql数据库，那么我认为这是最有意义的。
构建页面时，您需要从数据库中查找真实文本内容并将其嵌入返回的页面中。
您将需要在每个页面上标识查看者是否是登录用户，并启用文本编辑功能（例如，从标准div动态切换为文本textarea或div editable =“ true”之类的形式）。
您需要捕获任何给定部分（以表单提交的形式，或者更干净一些使用ajax调用服务器的javascript）所进行的文本更改。
在服务器端验证内容更改并将其存储到数据库中。

这里有一个参考作为起点：https://css-tricks.com/php-for-beginners-building-your-first-simple-cms/

允许管理员用户编辑网站内容

1 个答案: