Proof of GF errors in form widget

proof_of_error.php

<?php
/*
 * You need to run this within a WP environment, with Gravity Forms installed, for the called functions to register.
 */

// make sure you have PHP error reporting on
error_reporting( E_ALL );

// wordpress widget args array; these are always sent by WP
$args = array(
  'before_widget' => '',
  'after_widget' => '',
  'before_title' => '',
  'after_title' => '',
);

/*
 * This mimics $instance sent when only a form is chosen when using the form widget. You can prove this: 
 *
 *   var_dump( $instance ); die();
 *
 * within the actual widget.php 'widget' method and look at the values on screen.
 */
$instance = array(
  'title' => '',
  'form_id' => '1',
  'tabindex' => '1',
);

proof_of_error_widget( $args, $instance );

/*
 * Lifted straight from gravity forms, changed the function name, eliminated comments and some whitespace,
 * added comments showing error locations
 */
function proof_of_error_widget( $args, $instance ) {

  extract( $args );
  
  echo $before_widget;
  
  $title = apply_filters( 'widget_title', $instance['title'] );
  
  if ( $title ) {
    echo $before_title . $title . $after_title;
  }
  
  $tabindex = is_numeric( $instance['tabindex'] ) ? $instance['tabindex'] : 1;
  
  $form = RGFormsModel::get_form_meta( $instance['form_id'] );
  
  if ( empty( $instance['disable_scripts'] ) && ! is_admin() ) {
    
    RGForms::print_form_scripts( $form, $instance['ajax'] );
    // Not set ........................ ^^^^^^^^^^^^^^^^^
    
  }

  $form_markup = RGForms::get_form( 
    $instance['form_id'],          
    $instance['showtitle'],        // Not set
    $instance['showdescription'],  // Not set
    false, 
    null, 
    $instance['ajax'],             // Not set
    $tabindex 
  );
  
  echo $form_markup;
  echo $after_widget;
}