Question

嗨，我已经创建了这个worpdress项目插件。数据在数据库中的wp-admin中成功呈现。现在我的问题是，似乎我的sql删除查询不起作用，这是我的sql删除代码似乎没关系。这是我的代码如下 add_action（＆＃39; admin_menu＆＃39;，＆＃39; zipcode_menu＆＃39;）;

function zipcode_menu(){
    add_menu_page( 'Zipcode Page', 'Zipcode', 'manage_options', 'zipcode', 'zipcode' );
}


function zipcode() {
    // Now display the settings editing screen
    echo '<div class="wrap">';
    // header
    echo "<h2>" . __( 'Zipcode', 'zip' ) . "</h2>";
    // settings form

    if(isset($_POST['Submit'])){
        global $wpdb;

        $zipcode = $_POST['zipcode'];

        $wpdb->query("INSERT INTO zipcode(zipcode)VALUES('$zipcode')" );
    }

    ?>

    <form method="post" action="">

    <table class="form-table">
        <tr valign="top">
            <td><input type="text" name="zipcode" placeholder="Zipcode: " value=""/></td>
        </tr>
    </table>
        <p class="submit">
            <input type="submit" name="Submit" class="button-primary" value="<?php esc_attr_e('Add Zipcode') ?>" />
        </p>

    </form>
    </div>
    <br>
    <br>

    <?php
        global $wpdb;
        $sql = "SELECT id, zipcode FROM zipcode;";
        $results = $wpdb->get_results($sql);

    ?>
    <script type="text/javascript">
        jQuery.noConflict();
            function goDelete($id){
                var x = confirm('Are you sure you want to delete this?');

                if(x){
                    jQuery.post("/wp-content/themes/doozo/lib/script.php", { id:$id }, function(data){

                    });

                }else{
                    return false;
                }
            }

    </script>

    <table width="600px">
        <tr>
            <th>
                Zipcode
            </th>
            <th>
                Options
            </th>
        </tr>
        <?php foreach($results as $r): ?>
        <tr class="zipcode-<?php echo $r->id; ?>">

            <th>
                <?php echo $r->zipcode; ?>
            </th>
            <th>
                <a onclick="goDelete('<?php echo $r->id; ?>')" href="#">Delete</a>
            </th>
        </tr>
        <?php endforeach; ?>

    </table>
    <?php

}

现在我的script.php代码从表中删除数据

global $wpdb;
$id = $_POST['id'];
echo $id;
// sql to delete a record
$sql = "DELETE FROM zipcode where id=$id";
echo $sql; exit;

有人可以帮我解决这个问题吗？似乎我的删除查询无法正常工作。任何帮助都非常感谢。 TIA

Answer 1

试试这个：

<?php
global $wpdb;
$id = $_POST['id'];
echo $id;

// sql to delete a record
//$sql = 'DELETE FROM zipcode WHERE id="'. $id .'"';
$wpdb->delete( 'zipcode', array( 'id' => $id ) );
?>

sql删除查询不能在wordpress中工作

1 个答案: