Custom HTML

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Overview

The custom HTML field allows you to output anything. You can even use a PHP callback function to output the HTML.

This field is usually used to display custom message/instruction to users. Sometimes, it’s used with PHP callback to display more advanced content (such as content from a query).

Screenshot

Settings

Besides the common settings, this field has the following specific settings:

Name	Description
std	Custom HTML content.
callback	PHP function that is called to show custom HTML content. Optional.

Sample code

array(
    // Field name: usually not used

    'type' => 'custom_html',
    // HTML content
    'std'  => '<div class="alert alert-warning">This is a custom HTML content</div>',

    // PHP function to show custom HTML
    // 'callback' => 'display_warning',
),

Styling

Because this field is usually used to display custom content, it requires some CSS to make the content looks good. To enqueue a CSS file to the admin editing page, use the rwmb_enqueue_scripts hook:

add_action( 'rwmb_enqueue_scripts', 'prefix_enqueue_custom_style' );
function prefix_enqueue_custom_style() {
    wp_enqueue_style( 'style-id', get_template_directory_uri() . '/css/admin.css' );
}

And in the admin.css you can put your custom styles.

Read more about the rwmb_enqueue_scripts hook.

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