do_settings_sections() 不适用于 WordPress 插件 PHP

Question

我是 Wordpress 开发和 PHP 的新手，我目前正在学习我非常喜欢的教程：https://www.youtube.com/watch?v=hbJiwm5YL5Q

但没过多久，我的代码（尽管与我发现的教程中的代码完全相同）就停止了按预期运行。 do_settings_sections 不渲染字段。

我做错了什么？不像我初始化了函数，不是吗？

我的代码：

<?php

/*
    Plugin Name: Word Count Statistics
    Description: A plugin to display the word and character count, as well as the aproximate reading time for an article. Where and what to display can be customized on the settings page.
    Version: 1.0
    ...
*/

//using a class allows the usage of function names, that don´t need to be unique
class WordCountAndTimePlugin 
{
   function __construct()
    {
        //array allows referencing the function names in the class
        add_action('admin_menu', array($this, 'adminPage'));
        add_action('admin-init', array($this, 'settings'));
    }
   
   function adminPage() 
    {
        add_options_page(
            'Word Count Settings', //Title of page
            'Word Count', //Display name in menu
            'manage_options', //Access allowed if user may...
            'word-count-settings-page', //Slug name
            array($this, 'displayHTML') //Function to call
        );
    }

    function displayHTML() 
    { 
        ?>
            <div class="wrap">
                <h1>Word Count Settings</h1>
                <form action="options.php" method="POST">
                    <?php
                        do_settings_sections('word-count-settings-page');
                        submit_button();
                    ?>
                </form>
            </div>
        <?php 
    }

    function settings()
    {

        //Creates a form section 
        add_settings_section(
            'wcp_first_section', //Section name
            'some text here', //Subtitle
            null, //Content / Desription
            'word-count-settings-page' //Slug name
        );

        //Creates a setting field
        add_settings_field(
            'wcp_location', //Name of setting
            'Display Location', //HTML label text
            array($this, 'displayLocationHTML'), //Function to display custom HTML
            'word-count-settings-page', //Slug name
            'wcp_first_section' //Section name
        );

        //Registers the setting field to the WordPress settings
        register_setting(
            'wordcountplugin', //Group it belongs to
            'wcp_location', //Name of setting
            array(
                'sanitize_callback' => 'sanitize_text_field', //Validates value
                'default' => '0' //Default value
            ) //Array of options
        );

    }

    function displayLocationHTML()
    {
        ?>
            Hello
        <?php
    }
}

$wordCountAndTimePlugin = new WordCountAndTimePlugin();

?>

提前致谢:)

Answer 1

你在钩子的名字上有一个小错误。您需要更换：

add_action('admin-init', array($this, 'settings'));

在：

add_action('admin_init', array($this, 'settings'));

do_settings_sections() 不适用于 WordPress 插件 PHP

do_settings_sections() is not working with WordPress Plugins PHP

php

wordpress

wordpress-plugin-creation