我正在编写一个 WordPress 插件，首先，我将菜单添加到 WordPress，然后每个菜单回调首先触发 admin_init 并需要所需的页面。这是我的逻辑
<?php
class EasySEO
{
public function __construct()
{
$this->wp_easy_seo_register_menu_page();
}
public function wp_easy_seo_register_menu_page()
{
add_menu_page('Easy SEO : General Setting', 'Easy SEO', 'manage_options', 'wp-easy-seo-dashboard', array(
$this,
'wp_easy_seo_general_cb'
));
add_submenu_page('wp-easy-seo-dashboard', 'Easy SEO : General Setting', 'General', 'manage_options', 'wp-easy-seo-dashboard', array(
$this,
'wp_easy_seo_general_cb'
));
add_submenu_page('wp-easy-seo-dashboard', 'Title & Metas - Easy SEO', 'Title & Metas', 'manage_options', 'wp_easy_seo_title', array(
$this,
'wp_easy_seo_title_cb'
));
add_submenu_page('wp-easy-seo-dashboard', 'Verify Domain Ownership - Easy SEO', 'Domain Verification', 'manage_options', 'wp_easy_seo_domain_ownership_verify', array(
$this,
'wp_easy_seo_domain_ownership_verify_cb'
));
add_submenu_page('wp-easy-seo-dashboard', 'Web Traffic Statistics - Easy SEO', 'Traffic Statistics', 'manage_options', 'wp_easy_seo_traffic_statistics', array(
$this,
'wp_easy_seo_traffic_statistics_cb'
));
}
function wp_easy_seo_general_cb()
{
}
function wp_easy_seo_title_cb()
{
add_action('admin_init', function()
{
require 'wp_easy_seo_title.php';
});
}
function wp_easy_seo_domain_ownership_verify_cb()
{
require 'wp_easy_seo_domain_ownership_verify.php';
}
function wp_easy_seo_traffic_statistics_cb()
{
require 'wp_easy_seo_traffic_statistics.php';
}
}
add_action('admin_menu', function()
{
new EasySEO;
});
?>
Admin_init 没有被触发，这就是下一页没有加载的原因。我试过 echo 1;exit;相反，要求检查代码是否流向我的 echo 1；仍然失败。
这是我的 wp_easy_seo_title 页面:
<?php
class EasySEO_Options {
public $options;
public function __construct() {
$this->options= get_option('wp_easyseo_homepage_options');
$this->easy_seo_display_options_page();
$this->wp_easy_seo_register_settings_and_field();
}
public function easy_seo_display_options_page() {
?>
<div class='wrap'>
<h2>Title & Metas - Easy SEO</h2>
<form action="options.php" enctype="multipart/form-data" method="POST">
<?php
settings_fields('wp_easyseo_homepage_options');
do_settings_sections('wp_easy_seo_title');
?>
<p class="submit">
<input name='submit' type='submit' class='button-primary' value='Save Changes'/>
</p>
</form>
</div>
<?php
}
public function wp_easy_seo_register_settings_and_field() {
register_setting('wp_easyseo_homepage_options', 'wp_easyseo_homepage_options');
add_settings_section('wp-easyseo-main-settings', 'Title & Metas', array($this, 'wp_easyseo_main_settings_cb'), 'wp_easy_seo_title');
add_settings_field('wp-easy-seo-title', 'Meta Title', array($this, 'wp_easy_seo_title_cb'), 'wp_easy_seo_title', 'wp-easyseo-main-settings');
add_settings_field('wp-easy-seo-description', 'Meta Description', array($this, 'wp_easy_seo_description_cb'), 'wp_easy_seo_title', 'wp-easyseo-main-settings');
}
public function wp_easyseo_main_settings_cb() {
}
/**
* Inputs
*/
public function wp_easy_seo_title_cb() {
echo "<input name='wp_easyseo_homepage_options[wp-easy-seo-title]' value='{$this->options['wp-easy-seo-title']}' type='text'/>";
}
public function wp_easy_seo_description_cb() {
echo "<input name='wp_easyseo_homepage_options[wp-easy-seo-description]' value='{$this->options['wp-easy-seo-description']}' type='text'/>";
}
}
new EasySEO_Options;
?>
最佳答案
现在，您对 add_action('admin_init'... 的调用位于函数 wp_easy_seo_title_cb 内部，直到渲染菜单时才会调用该函数。是在 admin_init 已经发生之后，所以注册得太晚了。
尝试将对 add_action 的所有调用移至类的构造函数中。
我发现最好在构造函数中注册所有操作，以便使事情井井有条并确保所有内容都及时注册。
<?php
class SomePlugin {
public function __construct() {
add_action('admin_init', array($this, 'some_callback'));
add_action('transition_post_status', array($this, 'other_callback'));
// etc
}
public function some_callback() {
// Do something
}
public function other_callback() {
// Do something
}
}
new SomePlugin();
这样，当文件加载时，它会立即注册所有的操作 Hook 。除了注册钩子(Hook)之外，构造函数中不应该发生太多其他事情，因为构造函数将在每个页面加载时运行。
关于php - admin_init 没有被触发，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/38906370/