如何在 PHP 中使用复选框正确删除多个数据库行？-php教程-PHP中文网

如何在 PHP 中使用复选框正确删除多个数据库行？

Mary-Kate Olsen

发布： 2024-10-25 19:42:02

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How to Properly Delete Multiple Database Rows Using Checkboxes in PHP?

在 PHP 中使用复选框协作删除数据库行

面对从 MySQL 堡垒中清除多行的任务，您在编码智慧的深处寻求启蒙。在着手进行数据清理工作时，您似乎遇到了难以克服的障碍。

您编写的代码虽然意图勇敢，但未能执行其行消灭的预期目的。决心克服这个障碍，您通过向受人尊敬的编码社区展示您的代码来寻求指导：

<code class="html">// PHP witchcraft to connect to MySQL
$dbc = mysqli_connect('localhost', 'root', 'admin', 'sample') or die('MySQL is out to get you!');
$query = "select * from links ORDER BY link_id";
$result = mysqli_query($dbc, $query) or die('Whoops! Query went awry!');
$count = mysqli_num_rows($result);</code>

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<code class="html">// Assemble your army of checkboxes
while ($row = mysqli_fetch_array($result)) {
    echo <<<HTML
<tr>
    <td><input type="checkbox" name="checkbox[]" value="$row[link_id]"></td>
    <td>$row[link_id]</td>
    <td>$row[link_name]</td>
    <td>$row[link_url]</td>
</tr>
HTML;
}</code>

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<code class="html">// The arsenal of deletion awaits your command
if (isset($_POST['delete'])) {
    // Retrieve your checked victims
    $checkbox = $_POST['checkbox'];

    // Summon the wrath of deletion upon each victim
    foreach ($checkbox as $del_id) {
        $sql = "DELETE FROM links WHERE link_id='$del_id'";
        // Unleash the purging power!
        $result = mysqli_query($dbc, $sql);
    }

    // If successful, redirect to the crime scene
    if ($result) {
        echo '<meta http-equiv="refresh" content="0;URL=view_links.php">';
    }
}</code>

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