WordPress Widget Boilerplate

MyWidget.php

<?php

add_action( 'widgets_init', 'register_my_widget' );

class My_Widget extends WP_Widget
{

	function __construct() {
		$widget_options = array(
			'classname' => 'my-widget-class'
			,'description' => __('Description of the Widget', 'textdomain')
		);

		$control_options = array(
			'width' => '400px'
		);
		parent::__construct(
			'my-widget-base-id', // Base ID
			__( 'Title Of My Widget', 'site' ), // Name
			$widget_options, 
			$control_options
		);
	}

	/**
	 * Outputs the form on sidebar admin
	 *
	 * @param array $instance The widget options
	 */
	function form( $instance ) {
	?>
	<p>
		Paragraph goes here.
	</p>
	<div>
		<label for="<?php echo $this->get_field_id( 'person_name' ); ?>">Full Name</label> 
		<input type="text" class="widefat" 
		id="<?php echo $this->get_field_id( 'person_name' ); ?>" 
		name="<?php echo $this->get_field_name( 'person_name' ); ?>" 
		value="<?php echo $instance['person_name']; ?>"> 
	</div>
	<div>
		<label for="<?php echo $this->get_field_id( 'person_email' ); ?>">Email</label> 
		<input type="email" class="widefat" 
		id="<?php echo $this->get_field_id( 'person_email' ); ?>" 
		name="<?php echo $this->get_field_name( 'person_email' ); ?>" 
		value="<?php echo $instance['person_email']; ?>"> 
	</div>
	<?php
	}

	/**
	 * Processing widget options on save
	 *
	 * @param array $new_instance The new options
	 * @param array $old_instance The previous options
	 */
	function update( $new_instance, $old_instance ) {
		$instance = array();
		$instance['person_name'] = ( ! empty( $new_instance['person_name'] ) ) ? strip_tags( $new_instance['person_name'] ) : $old_instance['person_name'];
		$instance['person_email'] = ( ! empty( $new_instance['person_email'] ) ) ? strip_tags( $new_instance['person_email'] ) : $old_instance['person_email'];

		return $new_instance;
	}

	/**
	 * Outputs the content of the widget
	 *
	 * @param array $args
	 * @param array $instance
	 */
	function widget($arg, $instance) {
		$widget_title = apply_filters( 'widget_title', $arg['widget_name'] );

		echo $arg['before_widget'];
		if ( ! empty( $arg['widget_name'] ) ) {
			echo $arg['before_title'] . $widget_title . $arg['after_title'];
		}
		echo __('Full Name:', 'site') . $instance['person_name'] . '<br />';
		echo __('Email:', 'site') . $instance['person_email'] . '<br />';
		echo $arg['after_widget'];
	}


}

function register_my_widget() {
	register_widget( 'My_Widget' );
}