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使用按钮从数据库中删除/修改用户

[英]Delete / Modify user from Database with a button

 原文  2020-12-13 13:44:42  6   1    php/ html/ mysql

问题描述

当我单击删除按钮时，它应该从数据库的该行中删除用户。 如果我单击修改按钮，我还需要此表中修改按钮的帮助，它应该更改用户类型（管理员、主管、用户）。 我已经尝试了所有方法，但我不知道如何解决它，这就是我寻求您帮助的原因。

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <title>Pannel</title>
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.css">
    <style type="text/css">
        body {
            font: 14px sans-serif;
            text-align: center;
        }
    </style>
</head>

<body>
    <div class="page-header">
        <h1> Admin Pannel</h1>
    </div>
    <div>
    </div>
</body>

</html>

<?php

session_start();

require 'config.php';

$strSQL = "SELECT username, email, type FROM benutzer";
$rs = mysqli_query($link, $strSQL);

echo "<table border='1' style='margin: 0 auto'>
<tr>
<th class='text-center'>Name / Vorname</th>
<th class='text-center'>Email</th>
<th class='text-center'>Type</th>
<th class='text-center'>Modify</th>
<th class='text-center'>Delete</th>
</tr>";

while ($row = mysqli_fetch_array($rs)) {
    echo "<tr>";
    echo "<td>" . $row['username'] . "</td>";
    echo "<td>" . $row['email'] . "</td>";
    echo "<td>" . $row['type'] . "</td>";
    echo "<td><input type='submit' value='Modify' class='btn' name='modify'></td>";
    echo "<td><input type='submit' value='Delete' class='btn' name='delete'></td>";
    echo "</tr>";
}
echo "</table>";

if (isset($_POST['modify'])) {
    $username = $row['username'];
    $modify_query = mysqli_query($link, "UPDATE benutzer SET type='Mitarbeiter, Chef' WHERE username=$username");

    if ($modify_query) {
        mysqli_close($link);
        header("location:welcome.php");
        exit;
    } else {
        echo mysqli_close($link);
    }
}

if (isset($_POST['delete'])) {
    $username = $row['username'];
    $delete_query = mysqli_query($link, "DELETE FROM benutzer WHERE id=$username");

    if ($delete_query) {
        mysqli_close($link);
        echo "Record deleted successfully";
        exit;
    } else {
        echo mysqli_close($link);
    }
}
?>

1 个解决方案

解决方案1
 -2  2020-12-13 13:57:10

试试这个，你错过了隐藏的输入类型，所以 php 看不到你提交的代码。
由于您显示了很多用户名，您将需要创建一堆输入隐藏类型，名称 = 用户名 1、名称 = 用户名 2 等。否则它将无法正常工作我可以向您展示一个更简单的方法（看下面这个代码）

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <title>Pannel</title>
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.css">
    <style type="text/css">
        body {
            font: 14px sans-serif;
            text-align: center;
        }
    </style>
</head>

<body>
    <div class="page-header">
        <h1> Admin Pannel</h1>
    </div>
    <div>
    </div>
</body>

</html>

<?php
session_start();
require('config.php');
$strSQL = "SELECT username, email, type FROM benutzer";
$rs = mysqli_query($link, $strSQL);
echo "<table border='1' style='margin: 0 auto'>
<tr>
<th class='text-center'>Name / Vorname</th>
<th class='text-center'>Email</th>
<th class='text-center'>Type</th>
<th class='text-center'>Modify</th>
<th class='text-center'>Delete</th>
</tr>";
while ($row = mysqli_fetch_array($rs)) {
    echo "<tr>";
    echo "<td>" . $row['username'] . "</td>";
    echo "<td>" . $row['email'] . "</td>";
    echo "<td>" . $row['type'] . "</td>";
    echo "<form action='pannel.php' method='post'>";
    echo "<input type='hidden' id=username' name='username' value='".$row['username']."'>";
    echo "<input type='hidden' id=email' name='email' value='".$row['email']."'>";
    echo "<input type='hidden' id=type' name='type' value='".$row['type']."'>";
    echo "<td><input type='submit' value='Modify' class='btn' name='modify'></td>";
    echo "<td><input type='submit' value='Delete' class='btn' name='delete'></td>";
    echo "</form>";
    echo "</tr>";
}
echo "</table>";
if (isset($_POST['modify'])) {
    $username = $_POST['username'];
    $modify_query = mysqli_query($link, "UPDATE benutzer SET type='Mitarbeiter, Chef' WHERE username=$username");
    if ($modify_query) {
        mysqli_close($link);
        header("location:welcome.php");
        exit;
    } else {
        echo mysqli_close($link);
    }
} else if (isset($_POST['delete'])) {
    $username = $_POST['username'];
    $delete_query = mysqli_query($link, "DELETE FROM benutzer WHERE username=$username");
    if ($delete_query) {
        mysqli_close($link);
        echo "Record deleted successfully";
        exit;
    } else {
        echo mysqli_close($link);
    }
}

编辑：

更简单的方法

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <title>Pannel</title>
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.css">
    <style type="text/css">
        body {
            font: 14px sans-serif;
            text-align: center;
        }
    </style>
</head>

<body>
    <div class="page-header">
        <h1> Admin Pannel</h1>
    </div>
    <div>
    </div>
</body>

</html>

<?php
session_start();
require('config.php');
$strSQL = "SELECT username, email, type FROM benutzer";
$rs = mysqli_query($link, $strSQL);
echo "<table border='1' style='margin: 0 auto'>
<tr>
<th class='text-center'>Name / Vorname</th>
<th class='text-center'>Email</th>
<th class='text-center'>Type</th>
<th class='text-center'>Modify</th>
<th class='text-center'>Delete</th>
</tr>";
while ($row = mysqli_fetch_array($rs)) {
    echo "<tr>";
    echo "<td>" . $row['username'] . "</td>";
    echo "<td>" . $row['email'] . "</td>";
    echo "<td>" . $row['type'] . "</td>";
    echo "<td><a href='pannel.php?delete=".$row['username']."'>Delete ".$row['username']."</a></td>";
    echo "<td><a href='pannel.php?modify=".$row['username']."'>Modify ".$row['username']."</a></td>";
    echo "</tr>";
}
echo "</table>";
if (isset($_GET['modify'])) {
    $username = $_GET['modify'];
    $modify_query = mysqli_query($link, "UPDATE benutzer SET type='Mitarbeiter, Chef' WHERE username=$username");
    if ($modify_query) {
        mysqli_close($link);
        header("location:welcome.php");
        exit;
    } else {
        echo mysqli_close($link);
    }
} else if (isset($_GET['delete'])) {
    $username = $_GET['delete'];
    $delete_query = mysqli_query($link, "DELETE FROM benutzer WHERE username=$username");
    if ($delete_query) {
        mysqli_close($link);
        echo "Record deleted successfully";
        exit;
    } else {
        echo mysqli_close($link);
    }
}

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