如何在 PHP 中使用複選框正確刪除多個資料庫行？-php教程-PHP中文網

如何在 PHP 中使用複選框正確刪除多個資料庫行？

Mary-Kate Olsen

發布： 2024-10-25 19:42:02

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

在PHP 中使用複選框協作刪除資料庫行

面對從MySQL 堡壘中清除多行的任務，您在編碼智慧的深處尋求啟蒙。在著手進行資料清理工作時，您似乎遇到了難以克服的障礙。

您所寫的程式碼雖然意圖勇敢，但未能執行其行消滅的預期目的。決心克服這個障礙，您通過向受人尊敬的編碼社區展示您的代碼來尋求指導：

<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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