Php 自定义邮件类型前端的附件

我使用此脚本从前端上载文件：

function insert_attachment_form($postID) {

global $post; 
$postID = $post->ID;
?>
      <form id="featured_upload" method="post" action="#" enctype="multipart/form-data">
    <input type="file" name="my_image_upload" id="my_image_upload"  multiple="false" />
    <input type="hidden" name="post_id" id="post_id" value="<?php echo $postID; ?>" />
    <?php wp_nonce_field( 'my_image_upload', 'my_image_upload_nonce' ); ?>
        <?php if( function_exists( 'cptch_display_captcha_custom' ) ) {
             echo "<input type='hidden' name='cntctfrm_contact_action' value='true' />";
             echo cptch_display_captcha_custom();
        } ;
    ?> <input id="submit_my_image_upload" name="submit_my_image_upload" type="submit" value="Upload" />
</form>

<?php }

//**************************************
// Process Attachment Form
//**************************************
function process_attachment() {


// Check that the nonce is valid, and the user can edit this post.
if ( 
    isset( $_POST['my_image_upload_nonce'], $_POST['post_id'] ) 
    && wp_verify_nonce( $_POST['my_image_upload_nonce'], 'my_image_upload' )
    && current_user_can( 'edit_post', $_POST['post_id'] )
    && function_exists( 'cptch_check_custom_form' ) 
    && cptch_check_custom_form() == true 
) {
    // The nonce was valid and the user has the capabilities, it is safe to continue.

    // These files need to be included as dependencies when on the front end.
    require_once( ABSPATH . 'wp-admin/includes/image.php' );
    require_once( ABSPATH . 'wp-admin/includes/file.php' );
    require_once( ABSPATH . 'wp-admin/includes/media.php' );

    // Let WordPress handle the upload.
    // Remember, 'my_image_upload' is the name of our file input in our form above.
    $attachment_id = media_handle_upload( 'my_image_upload', $_POST['post_id'] );

    if ( is_wp_error( $attachment_id ) ) {
        // There was an error uploading the image.
    } 
}   
    elseif (function_exists( 'cptch_check_custom_form' ) && cptch_check_custom_form() !== true) 
{

    echo "Please complete the CAPTCHA.";
}

else
{

    echo "There was a problem";
    header( 'Location: http://www.yoursite.com/new_page.html' ) ;
}


}
add_action('init', 'process_attachment');

有什么想法吗

---

提前感谢

我在自定义帖子类型方面遇到了一些类似的问题。我的错误是因为我没有在脚本的流程部分注册自定义分类法。因此，在您的process_attachment函数中，尝试在IF检查之前注册自定义分类法

我刚才回答了我的问题，它与行有关

&& current_user_can( 'edit_post', $_POST['post_id'] ))

但别问我为什么

&& current_user_can( 'edit_post', $_POST['post_id'] ))