Wordpress 插件未出现在管理屏幕中

Question

我创建了一个 wordpress 插件。它没有反映在管理模块中。

下面给出了代码和屏幕截图。

Code in structure in Visual Studio Code

<?php

/**
 * EndpointHelper File Doc Comment.
 *
 * PHP version 7.4.1
 *
 * @category EndpointHelper
 * @package  Helper
 * @author   Bonson Mampilli <bonson.mampilli@company.com>
 * @license  GNU General Public License version 2 or later; see LICENSE
 * @link     http://test site.com
 * @return   empty string
 */
add_action('admin_init', 'do_something');
/**
 * EndpointHelper File Doc Comment.
 *
 * PHP version 7.4.1
 *
 * @category EndpointHelper
 * @package  Helper
 * @author   Bonson Mampilli <bonson.mampilli@company.com>
 * @license  GNU General Public License version 2 or later; see LICENSE
 * @link     http://test site.com
 * @return   empty string
 */
function Do_something() 
{
     wp_die('Hello World');
}

Answer 1

这是来自 wordpress 文档

do_action( 'admin_init' ) Note, this does not just run on user-facing admin screens. It runs on admin-ajax.php and admin-post.php as well. This is roughly analogous to the more general ‘init’ hook, which fires earlier.

这里是您可以用来在管理端显示内容的示例（用于调试目的）

add_filter('admin_footer_text', 'left_admin_footer_text_output'); //left side
function left_admin_footer_text_output($text) {
  $text = 'How much wood would a woodchuck chuck?';
  return $text;
}

与前端不同，这里的大部分代码是由管理模板通过 ajax 加载的，die() 和 wp_die() 可以工作，因为这意味着发生了致命错误，echo 会起作用，但你不会看到它。检查你的控制台和如何使用 JS 和 PHP 将东西加载到管理屏幕的文档，你可以从这里开始。

Answer 2

I had to add the following lines in the beginning and it starting showing up as a control in the admin screens:

Few additional changes:

?> was missing at the end

Added certain items at the beginning. I understand now that they are mandatory for the plugin to be visible.

<?php
/**
 * PHP version 7.4.1
 * Plugin Name: My New Plugin
 * Plugin URI: http://yourdomain.com/
 * Description: My new wordpress plugin
 * Version: 1.0
 * Author: Bonson Mampilli
 * Author URI: http://yourdomain.com
 * License: GPL
 *
 * @category EndpointHelper
 * @package  Helper
 * @author   Bonson Mampilli <bonson.mampilli@company.com>
 * @license  GNU General Public License version 2 or later; see LICENSE
 * @link     http://test site.com
 * @return   empty string
 */
add_action('admin_init', 'Do_something');
/**
 * PHP version 7.4.1
 * Plugin Name: My New Plugin
 * Plugin URI: http://yourdomain.com/
 * Description: My new wordpress plugin
 * Version: 1.0
 * Author: Bonson Mampilli
 * Author URI: http://yourdomain.com
 * License: GPL
 *
 * @category EndpointHelper
 * @package  Helper
 * @author   Bonson Mampilli <bonson.mampilli@company.com>
 * @license  GNU General Public License version 2 or later; see LICENSE
 * @link     http://test site.com
 * @return   empty string
 */
function Do_something() 
{
     wp_die('Hello World');
}
?>

Wordpress 插件未出现在管理屏幕中

Wordpress Plugin does not appear in Admin Screen

wordpress

wordpress-plugin-creation