Question

我正在尝试使用一些错误消息和类似的东西来登录表单，然后我想用cookie记住系统。我开始发现这个，但我已经有一个错误，我不明白为什么会发生。错误是这样的： 注意：未定义的索引：请记住第35行的F：\ Xampp \ htdocs \ projeto \ admin \ index.php 你能看到导致这个错误的错误吗？

        <body>

        <div id="login">

            <img src="images/login-logo.png"/>

    <div style="display:none">
                <span class="ms ok">Login sucess!</span>
                <span class="ms no">Error</span>
                <span class="ms al">Alert</span>
                <span class="ms in">Information</span>
            </div>

                <?php
                if($_GET['remember'])
                {
                ?>

                <form name="login" action="" method="post">
                    <label>
                        <span>Email:</span>
                        <input type="text" class="radius" name="email" />
                    </label>
                    <label>
                        <span>Senha:</span>
                        <input type="password" class="radius" name="email" />
                    </label>
                    <input type="submit" value="Login" name="sendLogin" class="btn" />

                    <div class="remember">
                        <input type="checkbox" name="remember" value="1" /> Remember your acess data!
                    </div>
                    <a href="index.php?remember=true" class="link" title="Forgot my Password">Forgot my password</a>
                </form>

                <?php
                }
                else
                {
                ?>
                <form name="recover" action="" method="post">
                    <span class="ms in">Inform your email</span>
                    <label>
                        <span>Email:</span>
                        <input type="text" class="radius" name="email" />
                    </label>
                    <input type="submit" value="Recover" name="sendRecover" class="btn" />
                     <a href="index.php" class="link" title="Back">Back</a>
                </form>

             <?php
                }
                ?>

        </div><!-- //login -->

        </body>

Answer 1

您在if条件中没有使用isset()，因此您收到以下错误

注意：未定义的索引：请记住第35行的 F：\ Xampp \ htdocs \ projeto \ admin \ index.php

如果使用isset()，即使未定义变量，也不会收到任何错误消息

有关isset()的更多信息，请参阅http://in1.php.net/isset

从

更改您的if条件

if($_GET['remember'])

要

if( isset($_GET['remember']) )

更改了代码：

<body>
    <div id="login">
        <img src="images/login-logo.png"/>
        <div style="display:none">
            <span class="ms ok">Login sucess!</span>
            <span class="ms no">Error</span>
            <span class="ms al">Alert</span>
            <span class="ms in">Information</span>
        </div>
    <?php
    if($_GET['remember'])
    {
    ?>
    <form name="login" action="" method="post">
        <label>
            <span>Email:</span>
            <input type="text" class="radius" name="email" />
        </label>
        <label>
            <span>Senha:</span>
            <input type="password" class="radius" name="email" />
        </label>
        <input type="submit" value="Login" name="sendLogin" class="btn" />
        <div class="remember">
            <input type="checkbox" name="remember" value="1" /> Remember your acess data!
        </div>
        <a href="index.php?remember=true" class="link" title="Forgot my Password">Forgot my password</a>
    </form>
    <?php
    }
    else
    {
    ?>
    <form name="recover" action="" method="post">
        <span class="ms in">Inform your email</span>
        <label>
            <span>Email:</span>
            <input type="text" class="radius" name="email" />
        </label>
        <input type="submit" value="Recover" name="sendRecover" class="btn" />
        <a href="index.php" class="link" title="Back">Back</a>
    </form>
    <?php
    }
    ?>
    </div><!-- //login -->
</body>

注意：未定义的索引问题

1 个答案: