gigasize777

aqui te pongo el codigo completo:

<?php

function my_custom_login_stylesheet() {?>
                 <style type="text/css">
                 
                 body.login div#login p#backtoblog {
display: none;
                 }

   
   </style>
              <?php 
              
                 }

defined( 'ABSPATH' ) || exit;
        
if ( ! class_exists( 'MP_Test_Plugin' ) ) :

    class MP_Test_Plugin {

        public function __construct() {
          
            add_action( 'admin_menu', array( $this, 'setup_menu' ) );
            add_action( 'admin_init', array( $this, 'register_options' ) );

        }
        
        public function setup_menu() {
                       add_menu_page( 'Test Plugin Page', 'Test Plugin', 'manage_options', 'test-plugin', array( $this, 'test_menu_page' ), 'dashicons-smiley' );
        }

        public function test_menu_page() { 
        
        
            if ( isset( $_POST['option_page'] ) && $_POST['option_page'] == 'mp_settings_group' ) {
                if ( isset( $_POST['test_init'] ) ) {
                    update_option( 'test_init', 'yes' );
                } else {
                    update_option( 'test_init', 'no' );
                }
            }
            
 
                          
            
            $test_option = get_option( 'test_init', 'no' );
            ?>
            <div class="wrap">
                <h1>Plugin</h1>
                <form method="post"> 
                    <?php settings_fields( 'mp_settings_group' ); ?>
                    <?php do_settings_sections( 'mp_settings_group' ); ?>
                    <input type="checkbox" name="test_init" value="<?php echo $test_option; ?>" <?php checked( $test_option, 'yes' ); ?> id="test_init" /><label for="test_init"> Activado?</label>
                        <?php submit_button(); ?>
                </form>
            </div>

            <?php
            
            if ( $test_option == 'yes' ) { 
                echo 'Activado'; 
                              
        add_action( 'login_enqueue_scripts', 'my_custom_login_stylesheet' );   

                
            } 
            
            
            else {
                echo 'Desactivado';
            }
            
        }

        public function register_options() {
            register_setting( 'mp_settings_group', 'test_init' ); 
        } 
    }
    
endif;

if ( is_admin() ) { 
    new MP_Test_Plugin();
}

Si lo lei pero no me funciona me redirige hacia options.php, ando enredado, le he agregado

function settings_page()
{

register_option_in_db(«test_init»);
}

pero me sigue sin funcionar