带上载的WordPress 3.0自定义日志类型

这是一个相当基本的例子,但它应该会让你走上你的路;

function my_upload_field()
{
    echo '<input type="file" name="my_upload_field" />';
}
add_action('init', create_function('',
    'add_meta_box("my_upload_field", "Upload File", "my_upload_field", "post");'));

function handle_upload_field($post_ID, $post)
{
    if (!empty($_FILES['my_upload_field']['name'])) {
        $upload = wp_handle_upload($_FILES['my_upload_field']);
        if (!isset($upload['error'])) {
            // no errors, do what you like
        }
    }
}
add_action('wp_insert_post', 'handle_upload_field', 10, 2);

查看上的codex add_meta_box 然后看看 wp_handle_upload() (第239行) wp-admin/includes/file.php 从3.0)开始获取更多信息。