Custom widget (i.c.m. ACF)

// Aanmaken widget
class Custom_Widget extends WP_Widget {
  function __construct() {
    parent::__construct(
      'custom_widget', // Base ID
      __('Tekst met button', 'text_domain'), // Name
      array( 'description' => __( 'Een widget met tekst en een button', 'text_domain' ), ) // Args
    );
  }
  public function widget( $args, $instance ) {
    echo $args['before_widget'];
    if ( !empty($instance['title']) ) {
      echo $args['before_title'] . apply_filters( 'widget_title', $instance['title'] ). $args['after_title'];
    }
    $tekst = get_field('tekst', 'widget_' . $args['widget_id']);
    $button_tekst = get_field('button_tekst', 'widget_' . $args['widget_id']);
    $button_link = get_field('button_link', 'widget_' . $args['widget_id']);
    echo $tekst;
    echo "<a href='". $button_link ."' class='btn'>". $button_tekst ."</a>";
    echo $args['after_widget'];
  }

  public function form( $instance ) {
    if ( isset($instance['title']) ) {
      $title = $instance['title'];
    }
    else {
      $title = __( 'New title', 'text_domain' );
    }
    ?>
    <p>
      <label for="<?php echo $this->get_field_id( 'title' ); ?>"><?php _e( 'Title:' ); ?></label>
      <input class="widefat" id="<?php echo $this->get_field_id( 'title' ); ?>" name="<?php echo $this->get_field_name( 'title' ); ?>" type="text" value="<?php echo esc_attr( $title ); ?>">
    </p>
    <?php
  }

  public function update( $new_instance, $old_instance ) {
    $instance = array();
    $instance['title'] = ( ! empty( $new_instance['title'] ) ) ? strip_tags( $new_instance['title'] ) : '';

    return $instance;
  }

}

add_action( 'widgets_init', function(){
  register_widget( 'Custom_Widget' );
});

// Aanmaken groep voor velden
if( function_exists('acf_add_local_field_group') ):

acf_add_local_field_group(array (
	'key' => 'group_5b3e1ead3169c',
	'title' => 'Button tekst widget',
	'fields' => array (
		array (
			'key' => 'field_5b3e22fc00b1d',
			'label' => 'Tekst',
			'name' => 'tekst',
			'type' => 'wysiwyg',
			'instructions' => '',
			'required' => 0,
			'conditional_logic' => 0,
			'wrapper' => array (
				'width' => '',
				'class' => '',
				'id' => '',
			),
			'default_value' => '',
			'tabs' => 'all',
			'toolbar' => 'full',
			'media_upload' => 1,
			'delay' => 0,
		),
		array (
			'key' => 'field_5b3e1ebc23fa7',
			'label' => 'Button tekst',
			'name' => 'button_tekst',
			'type' => 'text',
			'instructions' => '',
			'required' => 0,
			'conditional_logic' => 0,
			'wrapper' => array (
				'width' => '',
				'class' => '',
				'id' => '',
			),
			'default_value' => '',
			'placeholder' => '',
			'prepend' => '',
			'append' => '',
			'maxlength' => '',
		),
		array (
			'key' => 'field_5b3e1ec323fa8',
			'label' => 'Button link',
			'name' => 'button_link',
			'type' => 'text',
			'instructions' => '',
			'required' => 0,
			'conditional_logic' => 0,
			'wrapper' => array (
				'width' => '',
				'class' => '',
				'id' => '',
			),
			'default_value' => '',
			'placeholder' => '',
			'prepend' => '',
			'append' => '',
			'maxlength' => '',
		),
	),
	'location' => array (
		array (
			array (
				'param' => 'widget',
				'operator' => '==',
				'value' => 'custom_widget',
			),
		),
	),
	'menu_order' => 0,
	'position' => 'normal',
	'style' => 'default',
	'label_placement' => 'top',
	'instruction_placement' => 'label',
	'hide_on_screen' => '',
	'active' => 1,
	'description' => '',
));

endif;

Vervolgens ACF groep aanmaken met de volgende

#acf #php #widgets