WordPress通过函数给前端和后台添加自定义字段

$new_general_setting = new new_general_setting();

class new_general_setting {

function new_general_setting( ) {

add_filter( 'admin_init' , array( &$this , 'register_fields' ) );

}

function register_fields() {

register_setting( 'general', 'shouquanma', 'esc_attr' );

add_settings_field('fav_color', '<label for="shouquanma">'.__('正版授权码' ).'</label>' , array(&$this, 'fields_html') , 'general' );

}

function fields_html() {

$value = get_option( 'shouquanma', '' );

echo '<input type="text" id="shouquanma" name="shouquanma" value="' . $value . '" size="65"/><br><span style="font-size:12px;color:#888">您正在使用<span style="color:#f00">Wordpress正版模板</span>，为保护您的权益和防止模板滥用，请填写<span style="color:#f00">授权码</span>！</span>';

}

}

function set_global_seo() {

$global_seo = new GlobalSeo();

$global_seo->setting_fields();

}

add_action( 'admin_init', 'set_global_seo' );

class GlobalSeo

{

public function setting_fields()

{

$text_input = [

'widget_ctextk' => '电话',

'shouquanma' => '邮箱',

];

foreach($text_input as $key => $val)

{

$this->sonliss_settings_field($key, $val, 'sonliss_textbox_callback', [$key]);

$this->sonliss_register_setting($key);

}

}

public function sonliss_settings_field($id, $title, $callback, $args)

{

add_settings_field(

$id,

$title,

[ $this, $callback ],

'general',

'default',

$args

);

}

public function sonliss_register_setting($id)

{

register_setting('general', $id);

}

public function sonliss_textbox_callback($args) {

$option = get_option($args[0]);

echo '<input type="hidden" data-id="'. $option.'" id="'. $args[0].'" name="'. $args[0] .'" value="" />';

}

}

function myfunction_custom_admin_footer2() {

echo '<script src="'.get_template_directory_uri(). '/admin/js/ashuwp_head.js?v=2"></script>';

}

add_filter('admin_footer_text', 'myfunction_custom_admin_footer2');

function panda_copyright() {

echo '网站前端添加代码';

}

add_action('wp_footer', 'panda_copyright');