初学者：从PHP/HTML/MySQL表和数据库中删除行_Php_Mysql_Sql

初学者：从PHP/HTML/MySQL表和数据库中删除行

php mysql sql

初学者：从PHP/HTML/MySQL表和数据库中删除行,php,mysql,sql,Php,Mysql,Sql,完整的PHP/MySQL和HTML新手，所以请容忍我，如果我没有正确解释自己。目前，我有一个订单表单，它将订单存储在我的数据库中，并显示在我的管理区域的表中。我希望在完成订单后能够从表和数据库中删除该行目前，我的代码如下所示： <?php //87229feely.php include('connection.php'); $result = mysql_query("SELECT * FROM orderform"); echo "<table border='1' >

完整的PHP/MySQL和HTML新手，所以请容忍我，如果我没有正确解释自己。目前，我有一个订单表单，它将订单存储在我的数据库中，并显示在我的管理区域的表中。我希望在完成订单后能够从表和数据库中删除该行

目前，我的代码如下所示：

<?php
//87229feely.php
include('connection.php');
$result = mysql_query("SELECT * FROM orderform");
echo "<table border='1' >
<tr>
<th><u>ID</th>
<th><u>Date</th>
<th><u>Product</th>
<th><u>Product Comments</th>
<th><u>Name</th>
<th><u>Address</th>
<th><u>Age</th>
<th><u>Delivery</th>
<th><u>Delete</th>

</tr>";

while($row = mysql_fetch_array($result))
{
echo "<tr>";
echo "<td>" . $row['id']. "</td>";
echo "<td>" . $row['date'] . "</td>";
echo "<td>" . $row['product'] . "</td>";
echo "<td>" . $row['productcomments'] . "</td>";
echo "<td>" . $row['name'] . "</td>";
echo "<td>" . $row['address'] . "</td>";
echo "<td>" . $row['age'] . "</td>";
echo "<td>" . $row['delivery'] . "</td>";
echo "<td><a href=\"deleterow.php?id=".$row['id']."\">delete</a></td>";

echo "</tr>";
}
echo "</table>";
?>

    <?php
//deleterow.php
    include('connection.php');
    $id = $_GET['id']; //this needs to be sanitized 
    if(!empty($id)){
        $result = mysql_query("DELETE FROM orderform WHERE id=".$id.";");
    }
    header("Location: 87229feely.php");
    ?>

有什么帮助吗？非常感谢大家。谢谢你有很多方法可以做到这一点。既然你是一个初学者，这可能是最直截了当的（尽管我不会这么做）

围绕桌子创建一个表单

在每行的

delete

列上添加一个按钮，并为其分配一个

id

（id应该是数据库中的id）

在解析表之前添加一些处理脚本

此答案不符合安全标准，但应满足以下要求：

<?php
//index.php
include('connection.php');
$result = mysql_query("SELECT * FROM orderform");
echo "<table border='1' >
<tr>
<th><u>ID</th>
<th><u>Date</th>
<th><u>Product</th>
<th><u>Product Comments</th>
<th><u>Name</th>
<th><u>Address</th>
<th><u>Age</th>
<th><u>Delivery</th>
<th><u>Delete</th>

</tr>";

while($row = mysql_fetch_array($result))
{
echo "<tr>";
echo "<td>" . $row['id']. "</td>";
echo "<td>" . $row['date'] . "</td>";
echo "<td>" . $row['product'] . "</td>";
echo "<td>" . $row['productcomments'] . "</td>";
echo "<td>" . $row['name'] . "</td>";
echo "<td>" . $row['address'] . "</td>";
echo "<td>" . $row['age'] . "</td>";
echo "<td>" . $row['delivery'] . "</td>";
echo "<td><a href=\"delete.php?id=".$row['id']."\">delete</a></td>";

echo "</tr>";
}
echo "</table>";
?>

<?php
//delete.php
include('connection.php');
$id = $_GET['id']; //this needs to be sanitized 
if(!empty($id)){
    $result = mysql_query("DELETE FROM orderform WHERE id=".$id.";");
}
header("Location: index.php");
?>

首先，您需要将已完成订单的ID发送到下一张表单。为此，可以添加：

echo("<input type='hidden' name='orderID' value='".$row['id']."'/>");

如果您使用的是GET方法：

<form method="GET">

也许PDO也会这样

<?php
include('connection.php');
?>
<form name="" action="delete.php" method="post"> 
    <table border='1' >
        <tr>
            <th>&nbsp;</th>
            <th><u>ID</th>
            <th><u>Date</th>
            <th><u>Product</th>
            <th><u>Product Comments</th>
            <th><u>Name</th>
            <th><u>Address</th>
            <th><u>Age</th>
            <th><u>Delivery</th>
            <th><u>Delete</th>
        </tr>
        <?php

        try {
            $conn = new PDO('mysql:host=localhost;dbname=myDatabase', $username, $password);
            $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);   

            $row = $conn->query('SELECT * FROM orderform');

            while($row = $stmt->fetch(PDO::FETCH_ASSOC)) {
                echo "<tr>";
                echo "<td><input type=\"checkbox\" name=\"id[]\" id=\"checkAll\" value=\"".$row['id']."\" /></td>" 
                echo "<td>" . $row['id']. "</td>";
                echo "<td>" . $row['date'] . "</td>";
                echo "<td>" . $row['product'] . "</td>";
                echo "<td>" . $row['productcomments'] . "</td>";
                echo "<td>" . $row['name'] . "</td>";
                echo "<td>" . $row['address'] . "</td>";
                echo "<td>" . $row['age'] . "</td>";
                echo "<td>" . $row['delivery'] . "</td>";
                echo "</tr>";
            }
        } catch(PDOException $e) {
            echo 'ERROR: ' . $e->getMessage();
        }

        ?>
    </table>
    <input type="submit" name="submit" value="submit" />
</form>


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delete.php

<?php

$id 
if(isset($_POST['submit']) {


    include('connection.php');

    try {
        $conn = new PDO('mysql:host=localhost;dbname=myDatabase', $username, $password);
        $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);   

        $sql="DELETE FROM orderform WHERE id IN (".implode(',',$conn->quote($id)).")";
        $stmt->exec($sql);

    } catch(PDOException $e) {
        echo 'ERROR: ' . $e->getMessage();
    }
}

是因为您不知道如何使用MySql和PHP删除记录，还是因为您不知道在某个UI操作发生后如何执行此操作？我不知道如何删除我会说谷歌删除MySql。也没那么难。另外，当您更高级时，请使用PDO或MySQLi而不是mysql查询。注意：第4行/web/users/l1071039/bobbin/deleterow.php中的未定义索引：id警告：无法修改标题信息-标题已由发送（输出从/web/users/l1071039/bobbin/connection.php:7开始）在第8行的/web/users/l1071039/bobbin/deleterow.php中，行正在删除，但它不会将我发送回87229feely.php？现在，87229feely.php需要与deleterow.php位于同一文件夹中。在调用header（）函数之前，还要确保没有输出任何内容（回显、打印、错误等）
<form action='action.php?id=".$row['id']."'>

if(isset($_GET['submit']) && isset($_GET['id')){
$orderID = $_GET['id'];
mysql_query("DELETE FROM table WHERE id=$orderID");
}

<?php
include('connection.php');
?>
<form name="" action="delete.php" method="post"> 
    <table border='1' >
        <tr>
            <th>&nbsp;</th>
            <th><u>ID</th>
            <th><u>Date</th>
            <th><u>Product</th>
            <th><u>Product Comments</th>
            <th><u>Name</th>
            <th><u>Address</th>
            <th><u>Age</th>
            <th><u>Delivery</th>
            <th><u>Delete</th>
        </tr>
        <?php

        try {
            $conn = new PDO('mysql:host=localhost;dbname=myDatabase', $username, $password);
            $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);   

            $row = $conn->query('SELECT * FROM orderform');

            while($row = $stmt->fetch(PDO::FETCH_ASSOC)) {
                echo "<tr>";
                echo "<td><input type=\"checkbox\" name=\"id[]\" id=\"checkAll\" value=\"".$row['id']."\" /></td>" 
                echo "<td>" . $row['id']. "</td>";
                echo "<td>" . $row['date'] . "</td>";
                echo "<td>" . $row['product'] . "</td>";
                echo "<td>" . $row['productcomments'] . "</td>";
                echo "<td>" . $row['name'] . "</td>";
                echo "<td>" . $row['address'] . "</td>";
                echo "<td>" . $row['age'] . "</td>";
                echo "<td>" . $row['delivery'] . "</td>";
                echo "</tr>";
            }
        } catch(PDOException $e) {
            echo 'ERROR: ' . $e->getMessage();
        }

        ?>
    </table>
    <input type="submit" name="submit" value="submit" />
</form>

<?php

$id 
if(isset($_POST['submit']) {


    include('connection.php');

    try {
        $conn = new PDO('mysql:host=localhost;dbname=myDatabase', $username, $password);
        $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);   

        $sql="DELETE FROM orderform WHERE id IN (".implode(',',$conn->quote($id)).")";
        $stmt->exec($sql);

    } catch(PDOException $e) {
        echo 'ERROR: ' . $e->getMessage();
    }
}