Question

我遇到第二个按钮运行不像第一个按钮的问题。这是我的代码：

        <p>
            <form method="POST">
                <input placeholder="Username" type="text" name="username"><br /><br />
                <input placeholder="password" type="password" name="password"><br /><br />
                <input value="Login" type="submit" name="log_In">
            </form>
        </p>
    </div>
    <?php
        if(isset($_POST['log_In'])) {
            #$f_name = $_POST['fname'];
            #$s_name = $_POST['sname'];
            #$stud_Id = $_POST['studId'];
            #$uname = $_POST['uname'];
            #$pass = $_POST['pass'];
            #$rpass = $_POST['rpass'];
            #$email = $_POST['email'];
            #$remail = $_POST['remail'];

            #var_dump($f_name);

            header("Location:home.php");

        }
    ?>
</div>
<div align="right">
    <div>
        <p>
            <h2>Sign Up</h2>
        </p>
        <p>
            <form>
                <input placeholder="Forename" type="text" name="fname" id="Forename"><br /><br />
                <input placeholder="Surname" type="text" name="sname"><br /><br />
                <input placeholder="Student Id" type="text" name="studId"><br /><br />
                <input placeholder="Username" type="text" name="uname"><br /><br />
                <input placeholder="password" type="password" name="pass" min="6" max="32"><br /><br />
                <input placeholder="Re-type password" type="password" name="rpass" min="6" max="32"><br /><br />
                <input placeholder="Email" type="" name="email"><br /><br />
                <input placeholder="Re-type Email" type="remail" name="remail"><br /><br />
                <input value="Sign Up" type="submit" name="sign_Up">
            </form>
        </p>
    </div>
    <?php
        if(isset($_POST['sign_Up'])) {
            header("Location:home.php");
        }
    ?>
</div>

“if（isset（$ _ POST ['sign_up']））{”没有运行，只是刷新页面并从表单中删除所有项目。

感谢

Answer 1

默认情况下，<form>方法是GET。所以if(isset($_POST['sign_Up']))无法工作。将其更改为if(isset($_GET['sign_Up']))。

或者将您的第二个表单标记更改为：

<form method="POST">

请记住，在生成HTML内容后不要使用header函数，请将其移至顶部！

必须在通过普通HTML标记，文件中的空行或PHP发送任何实际输出之前调用
header（）。

如果是这样的话会更好：

<?php
        if(isset($_POST['log_In']) || isset($_POST['sign_Up'])) {
            header("Location:home.php");
        }
?>
<form method="POST">
    <input placeholder="Username" type="text" name="username">
    <br />
    <br />
    <input placeholder="password" type="password" name="password">
    <br />
    <br />
    <input value="Login" type="submit" name="log_In">
</form>

<div align="right">
    <div>
        <p>
             <h2>Sign Up</h2>
        </p>
        <p>
            <form method="post">
                <input placeholder="Forename" type="text" name="fname" id="Forename">
                <br />
                <br />
                <input placeholder="Surname" type="text" name="sname">
                <br />
                <br />
                <input placeholder="Student Id" type="text" name="studId">
                <br />
                <br />
                <input placeholder="Username" type="text" name="uname">
                <br />
                <br />
                <input placeholder="password" type="password" name="pass" min="6" max="32">
                <br />
                <br />
                <input placeholder="Re-type password" type="password" name="rpass" min="6" max="32">
                <br />
                <br />
                <input placeholder="Email" type="" name="email">
                <br />
                <br />
                <input placeholder="Re-type Email" type="remail" name="remail">
                <br />
                <br />
                <input value="Sign Up" type="submit" name="sign_Up">
            </form>
        </p>
    </div>
</div>

Answer 2

您忘记添加方法=＆＃34;发布＆＃34;

 SELECT  `chart_rating` . * , SUM( chart_rating.rating_score ) AS total_score, release.release_label
    FROM  `chart_rating` 
    INNER JOIN  `release` ON  `chart_rating`.`rating_release_id` =  `release`.`id` 
    WHERE MATCH (
    REPLACE(release.release_label,' ','')
    )
    AGAINST (
    "+UltraMusic"
    IN BOOLEAN MODE
    )
    GROUP BY  `rating_release_id` 
    ORDER BY  `total_score` DESC

Answer 3

以第二种形式你没有定义方法如果没有定义方法它将接受GET方法默认，所以改变你的第二个表格标签

<form action="" method="POST">

第二个提交按钮不能在PHP中工作

3 个答案: