php - 我试图在 php 中创建一个固定密码的登录表单

Question

我尝试在 php 中创建一个固定密码的登录表单。这是我的表单，它不显示错误消息，我想创建用户名，没问题，但密码是常量，如 ex:abcd 它是每个用户名的密码.

 <form  action="test.php" method="POST">
                    <div class="logintable ">
                        <table  class="applyfont" style="border: 1px solid lightseagreen">
                            <tbody>
                                <tr id="login1">
                                    <td class="applyfontbold"><b>Login page </b></td>
                                </tr>
                                <tr>
                                    <td style="padding-right:10px;">
                                        <input type="text" name="name" value="" placeholder="Username or Email" id="uname">
                                          <span>
                                            <?php if(isset($_GET['nameErr']))
                                            echo $_GET['nameErr'];
                                            ?>
                                        </span>  
                                    </td>
                                </tr>
                                <tr> 
                                    <td>
                                        <input type="password" name="password" value="" placeholder="Password" id="password">
                                        <span>
                                            <?php if(isset($_GET['passeErr']))
                                            echo $_GET['passeErr'];
                                            ?>
                                        </span> 
                                    </td>
                                </tr>
                                <tr> 
                                    <td>
                                        <p class="submit"><input type="submit" name="save" value="Submit"> </p>

                                    </td>
                                </tr>
                                <tr>
                                    <td>
                                        <div class="login-help applyfontlighter">
                                            <p>Forgot your password? <span id="footer"><u style="color:red;"><a href="#">Click here to reset it.</a></u></span></p>
                                        </div>
                                        <p id="new"><button type="button" class="btn btn-default btn-xs" >New Registers</button></p>
                                    </td>
                                </tr>

                            </tbody> 
                        </table>
                    </div>
                </form>

<?php

$passeErr = $nameErr = "";
$password = $name = "";
$x = "typepass";


if (isset($_POST['save'])) {

    if (empty($_POST['name'])) {
        $nameErr = "Name is required";
       header("Location:http://localhost/Archimage/login.html?nameErr=$nameErr");
    } else {
        $name = test_input($_POST['name']);
    }
    if (empty($_POST['password'])) {
        $passeErr = "password is required";
         header("Location:http://localhost/Archimage/login.html?passeErr=$passeErr");
    } elseif ($password !== $x) {
        $passeErr = "password doesn't match";
         header("Location:http://localhost/Archimage/login.html?passeErr=$passeErr");
    } else {
        $password = test_input($_POST['password']);
    }
    
    echo "Username : " . $name . "<br>" . "Password :" . " " . $password;
}
?>

Answer 1

正如我在你的代码中看到的，密码是这样定义的

$password = $name = "";

因此，当您与空值进行比较时，而不是与表单中的 $_POST 值进行比较时。

比较会

 elseif ($_POST['password']!== $x) {

期待对你的帮助