How to Show Custom Notifications in WordPress Dashboard?

Web Development
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1

How can I create custom admin notices in WordPress without using a plugin? I want to display errors, warnings, or success messages to users in the WordPress admin area. I know there is a hook called admin_notices that I can use, but I’m not sure how to write the code for it. Can anyone help me with some examples or tutorials?

2

To create custom admin notices in WordPress without using a plugin, you can use the admin_notices hook to display your messages in the WordPress admin area. You can also use different classes to style your notices as error, warning, success, or info.

// Add a custom function to the admin_notices hook
add_action( 'admin_notices', 'show_custom_notice' );

// Define the custom function
function show_custom_notice() {
    $type = 'info'; // error, warning, success,
    echo '<div class="notice notice-' . esc_attr( $type ) . ' is-dismissible">
            <p>Hello World!</p>
          </div>';
}

This is the HTML code for the notification.

<div class="notice notice-info is-dismissible">
      <p>Hello World!</p>
</div>

You have the below class available to change the message type

.notice-warning
.notice-error
.notice-info
.notice-success