Control: Callback - 10quality/wpmvc-addon-metaboxer GitHub Wiki
The control used a field type to output and render custom HTML.
See example:
class Post extends Model
{
// Class properties and methods...
protected function init()
{
$this->metaboxes = [
'metabox_id' => [
'tabs' => [
'tab_id' => [
'fields' => [
uniqid() => [
'type' => 'callback',
'callback' => function( $settings_model, $field_id ) {
echo '<p>Custom HTML rendering.</p>';
echo '<pre style="background-color: #444444;color: #fff;padding: 10px;overflow: auto;">';
print_r( $settings_model );
echo '</pre>';
},
],
],
],
],
],
];
}
}