Adds a page select field to Custom Metaboxes and Fields for WordPress

page-select-CMB-WordPress

/* ADD PAGE SELECT FIELD */
function metabox_page_select_field( $field, $meta ) {
  $args = array(
    'depth'            => 0,
    'child_of'         => 0,
    'selected'         => $meta,
    'echo'             => 1,
    'name'             => $field['id']
  );
  wp_dropdown_pages($args);
  echo '<p class="cmb_metabox_description">', $field['desc'], '</p>';
}//end metabox_page_select_field
add_action( 'cmb_render_page_select', 'metabox_page_select_field', 10, 2 );
function metabox_page_select_field_validate( $new ) {
  if ( !is_numeric( $new ) ) {$new = "";}   
  return $new;
}//end metabox_page_select_field_validate
add_filter( 'cmb_validate_page_select', 'metabox_page_select_field_validate' );