Question

执行查询后到达标题的php代码

<?php
if (isset($_POST['Submit1'])) {
    $con = mysqli_connect("localhost:3306", "root", "", "travels");
    // Check connection
    if (mysqli_connect_errno()) {
        echo "Failed to connect to MySQL: " . mysqli_connect_error();
    }

    $fname1 = $_POST['fname'];
    $lname1 = $_POST['lname'];
    $pnum1 = $_POST['pnum'];
    $email1 = $_POST['email'];
    $fcode = $_POST['fcode'];
    $sql = "insert into customer_info(fname,lname,pnumber,email) values ('$fname1','$lname1','$pnum1','$email1')";
    $sql1 = "insert into booking_info(fname,lname,pnumber,email,f_code) values ('$fname1','$lname1','$pnum1','$email1','$fcode')";
    $sql2 = "update flight_info set seats_available=seats_available-1 where flight_code='$fcode'";
    mysqli_query($con, $sql);
    mysqli_query($con, $sql1);
    mysqli_query($con, $sql2);
    header("Location: Booking_confirm.php");
}
?>

HTML代码

<div class="container mt-5">
    <div class="row">
        <div class="col-md-6">
            <form action="Booking.php" method="POST">
                <div class="form-group">
                    <label for="fname">First Name: </label>
                    <input type="text" name="fname" class="form-control" id="fname"/>
                </div>

                <div class="form-group">
                    <label for="lname">Last Name: </label>
                    <input type="text" name="lname" class="form-control" id="lname"/>
                </div>

                <div class="form-group">
                    <label for="pnum">Phone Number: </label>
                    <input type="text" name="pnum" class="form-control" id="pnum"/>
                </div>

                <div class="form-group">
                    <label for="email">Email-Address: </label>
                    <input type="text" name="email" class="form-control" id="email"/>
                </div>

                <div class="form-group">
                    <label for="flight">Flight No: </label>
                    <input type="text" name="fcode" class="form-control" id="fcode"/>
                </div>
                <form action="Booking_confirm.php" method="POST" target="_blank">
                    <button type="Submit" name="Submit1" class="btn btn-primary">Book</button>
                </form>
            </form>
        </div>

这是我的代码的样子。由于某种原因，我的标头不起作用，我无法找出原因。帮助将不胜感激。我尝试了所有可能的更改以使标头正常工作，但没有用

Answer 1

您有两个嵌套表单，第一个表单action="Booking.php"包含所有字段，而第二个嵌套表单action="Booking_confirm.php"仅包含提交按钮NO字段。

替换

<form action="Booking_confirm.php" method="POST" target="_blank">
  <button type="Submit" name="Submit1" class="btn btn-primary">Book</button>
</form>

与

<button type="Submit" name="Submit1" class="btn btn-primary">Book</button>

点击提交时，没有$_POST['fname']，$_POST['lname']等。

编辑：您可能还需要替换

<form action="Booking.php" method="POST">

使用

<form action="Booking_confirm.php" method="POST" target="_blank">

取决于放置“标头” /代码的位置

Answer 2

确保在header（）函数之前没有空格，html标记或任何输出...

上传整个代码，结构，以便我们可以帮助您找到解决方案

为什么标头在此代码中不起作用？

2 个答案: