Shortcode to insert PHP & Create a Widget

functions.php

// shortcode - features

// shortcode implementation
function sc_features($atts) {

   // turn on output buffering to capture script output
	
   ob_start();

   // include file (contents will get saved in output buffer)
	
			get_template_part('includes/features');

   // save and return the content that has been output

   $content = ob_get_clean();
   return $content;
}
//register the Shortcode handler
add_shortcode('features', 'sc_features');





// widget - include


class NameOfWidget extends WP_Widget
{
  function NameOfWidget()
  {
    $widget_ops = array('classname' => 'NameOfWidget', 'description' => 'Displays a ....' );
    $this->WP_Widget('NameOfWidget', 'Title goes here', $widget_ops);
  }
 
  function form($instance)
  {
    $instance = wp_parse_args( (array) $instance, array( 'title' => '' ) );
    $title = $instance['title'];
?>
  <p><label for="<?php echo $this->get_field_id('title'); ?>">Title: <input class="widefat" id="<?php echo $this->get_field_id('title'); ?>" name="<?php echo $this->get_field_name('title'); ?>" type="text" value="<?php echo attribute_escape($title); ?>" /></label></p>
<?php
  }
 
  function update($new_instance, $old_instance)
  {
    $instance = $old_instance;
    $instance['title'] = $new_instance['title'];
    return $instance;
  }
 
  function widget($args, $instance)
  {
    extract($args, EXTR_SKIP);
 
    echo $before_widget;
    $title = empty($instance['title']) ? ' ' : apply_filters('widget_title', $instance['title']);
 
    if (!empty($title))
      echo $before_title . $title . $after_title;;
 
    // widget code here
	get_template_part( 'includes/widget/name' );

 
    echo $after_widget;
  }
 
}
add_action( 'widgets_init', create_function('', 'return register_widget("NameOfWidget");') );