AJAX从Wordpress插件调用的脚本没有得到$ wpdb-Java 学习之路

我正在编写一个Wordpress插件，并希望使用ajax来提交数据 . 使用ajax在管理面板中提交表单时，我收到此错误：

致命错误：在第13行的/home1/crave/public_html/wp-content/plugins/MiniCMS/add_contenttype.php中的非对象上调用成员函数insert（）

这是被调用的脚本 . 错误行已注释 .

<?php
global $wpdb;

$name = $_POST["name"];
$id = '1';
$text_inputs = $_POST["text_inputs"];
$paragraph_inputs = $_POST["paragraph_inputs"];
$map_inputs = $_POST["map_inputs"];
$file_inputs = $_POST["file_inputs"];

$contentTypeTable = $wpdb->prefix . "minicms_content_type";

//This is line 13, the problem child:
$wpdb->insert( $contentTypeTable, array(
    'name' => $name,
    'id' => $id,
    'text_inputs' => $text_inputs,
    'paragraph_inputs' => $paragraph_inputs,
    'map_inputs' => $map_inputs,
    'file_inputs' => $file_inputs
));
?>

Does anyone know why I'm not getting $wpdb to work?

1 回答

你需要在WordPress方式中使用ajax .

From WordPress Doc:

首先添加一些将触发AJAX请求的javascript：

<?php
add_action( 'admin_footer', 'my_action_javascript' );

function my_action_javascript() {
?>
<script type="text/javascript" >
jQuery(document).ready(function($) {

    var data = {
        action: 'my_action',
        whatever: 1234
    };

    // since 2.8 ajaxurl is always defined in the admin header and points to admin-ajax.php
    $.post(ajaxurl, data, function(response) {
        alert('Got this from the server: ' + response);
    });
});
</script>
<?php
}

然后，设置一个将处理该请求的PHP函数：

add_action('wp_ajax_my_action', 'my_action_callback');

function my_action_callback() {
    global $wpdb; // this is how you get access to the database

    $whatever = intval( $_POST['whatever'] );

    $whatever += 10;

        echo $whatever;

    die(); // this is required to return a proper result
}

参考：

回复于 2024-04-29T03:12:23+08:00

AJAX从Wordpress插件调用的脚本没有得到$ wpdb

1 回答

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