CODE Web Kiểm Tra

Tham khảo: Make WordPress User Name the Email Address – Stack Overflow

//code xoa usename va dung email
add_action('login_head', function(){
?>
    <style>
        #registerform > p:first-child{
            display:none;
        }
    </style>

    <script type="text/javascript" src="<?php echo site_url('/wp-includes/js/jquery/jquery.js'); ?>"></script>
    <script type="text/javascript">
        jQuery(document).ready(function($){
            $('#registerform > p:first-child').css('display', 'none');
        });
    </script>
<?php
});
//Remove error for username, only show error for email only.
add_filter('registration_errors', function($wp_error, $sanitized_user_login, $user_email){
    if(isset($wp_error->errors['empty_username'])){
        unset($wp_error->errors['empty_username']);
    }

    if(isset($wp_error->errors['username_exists'])){
        unset($wp_error->errors['username_exists']);
    }
    return $wp_error;
}, 10, 3);
add_action('login_form_register', function(){
    if(isset($_POST['user_login']) && isset($_POST['user_email']) && !empty($_POST['user_email'])){
        $_POST['user_login'] = $_POST['user_email'];
    }
});

 

// Source - https://stackoverflow.com/a
// Posted by Nishant Kumar, modified by community. See post 'Timeline' for change history
// Retrieved 2025-12-24, License - CC BY-SA 3.0

add_action('login_head', function(){
?>
    <style>
        #registerform > p:first-child{
            display:none;
        }
    </style>

    <script type="text/javascript" src="<?php echo site_url('/wp-includes/js/jquery/jquery.js'); ?>"></script>
    <script type="text/javascript">
        jQuery(document).ready(function($){
            $('#registerform > p:first-child').css('display', 'none');
        });
    </script>
<?php
});
// Source - https://stackoverflow.com/a
// Posted by Nishant Kumar, modified by community. See post 'Timeline' for change history
// Retrieved 2025-12-24, License - CC BY-SA 3.0

//Remove error for username, only show error for email only.
add_filter('registration_errors', function($wp_error, $sanitized_user_login, $user_email){
    if(isset($wp_error->errors['empty_username'])){
        unset($wp_error->errors['empty_username']);
    }

    if(isset($wp_error->errors['username_exists'])){
        unset($wp_error->errors['username_exists']);
    }
    return $wp_error;
}, 10, 3);
; Source - https://stackoverflow.com/a
; Posted by Nishant Kumar, modified by community. See post 'Timeline' for change history
; Retrieved 2025-12-24, License - CC BY-SA 3.0

add_action('login_form_register', function(){
    if(isset($_POST['user_login']) && isset($_POST['user_email']) && !empty($_POST['user_email'])){
        $_POST['user_login'] = $_POST['user_email'];
    }
});

 

//Code xoa usename va dung email
//Step-1: Remove Username textfield
add_action('login_head', function(){
?>
    <style>
        #registerform > p:first-child{
            display:none;
        }
    </style>

    <script type="text/javascript" src="<?php echo site_url('/wp-includes/js/jquery/jquery.js'); ?>"></script>
    <script type="text/javascript">
        jQuery(document).ready(function($){
            $('#registerform > p:first-child').css('display', 'none');
        });
    </script>
<?php
});
//Remove error for username, only show error for email only.
add_filter('registration_errors', function($wp_error, $sanitized_user_login, $user_email){
    if(isset($wp_error->errors['empty_username'])){
        unset($wp_error->errors['empty_username']);
    }

    if(isset($wp_error->errors['username_exists'])){
        unset($wp_error->errors['username_exists']);
    }
    return $wp_error;
}, 10, 3);
add_action('login_form_register', function(){
    if(isset($_POST['user_login']) && isset($_POST['user_email']) && !empty($_POST['user_email'])){
        $_POST['user_login'] = $_POST['user_email'];
    }
});

 

 

Sử dụng email làm tài khoản

add_action('login_form_register', function(){
    if(isset($_POST['user_login']) && isset($_POST['user_email']) && ! empty($_POST['user_email'])){
        $_POST['user_login'] = $_POST['user_email'];
    }
});

Hoặc

add_action('login_form_register', function(){
    if(isset($_POST['user_email']) && !empty($_POST['user_email'])){
        $_POST['user_login'] = $_POST['user_email'];
    }
});

Code ản Admin với user

function restrict_wp_admin_by_role() {
    if ( is_admin() && !defined('DOING_AJAX') ) {

        // Lấy user hiện tại
        $current_user = wp_get_current_user();

        // Các role được phép vào wp-admin
        $allowed_roles = array('administrator', 'editor', 'author');

        // Kiểm tra xem user có role hợp lệ không
        if ( !array_intersect($allowed_roles, $current_user->roles) ) {
            wp_redirect( home_url() );
            exit;
        }
    }
}
add_action('admin_init', 'restrict_wp_admin_by_role');



add_filter('show_admin_bar', function ($show) {

    if ( is_user_logged_in() && current_user_can('read') && !current_user_can('edit_posts') ) {
        return false; // Subscriber
    }

    return $show;
});

Set mật khẩu mặc định cho user khi đăng ký

function set_default_password_for_new_user( $user_id ) {

    $default_password = '123456@Abc'; // ⚠️ đổi mật khẩu mặc định tại đây

    wp_set_password( $default_password, $user_id );
}
add_action( 'user_register', 'set_default_password_for_new_user' );