wordpress optin form widget

widget.php

<?php

class WendiePett_Optin extends WP_Widget {

  /**
	 * Sets up the widgets name etc
	 */
	public function __construct() {
		// widget actual processes
    parent::__construct(
			'pett_optin', // Base ID
			__( 'Wendie Pett - Optin', 'wendiepett' ), // Name
			array( 'description' => __( 'Social Media Widget of Wendie Pett Theme.', 'wendiepett' ), ) // Args
		);
	}

  /**
 * Outputs the content of the widget
 */
  public function widget( $args, $instance ) {
    // outputs the content of the widget
    extract($args);
		$hidetitle = $instance['hidetitle'] ? 'on' : 'off';
    $pettFormAction = $instance['pett_optin_action'];
    $pettFormExtra = $instance['pett_optin_extra'];
    $pettFormName = $instance['pett_optin_name'];
    $pettFormEmail = $instance['pett_optin_email'];
    $pettFormNameHolder = $instance['pett_optin_name_holder'];
    $pettFormEmailHolder = $instance['pett_optin_email_holder'];
    $pettFormText = $instance['pett_optin_text'];
    $getSubmitImage = get_stylesheet_directory_uri() . '/images/submit.png';

    echo $args['before_widget'];

    if ( $hidetitle == 'off' ) {
      if ( ! empty( $instance['title'] ) ) {
        echo $args['before_title'] . apply_filters( 'widget_title', $instance['title'] ). $args['after_title'];
      }
    } ?>

    <div class="pett-form-widget-wrapper">
      <div class="pett-form-text">
        <p><?php echo $pettFormText; ?></p>
      </div>

      <div class="pett-form-html">
        <form action="<?php echo $pettFormAction; ?>" method="post">
          <?php echo $pettFormExtra; ?>
          <input type="text" name="<?php echo $pettFormName; ?>" placeholder="<?php echo $pettFormNameHolder; ?>" />
          <input type="email" name="<?php echo $pettFormEmail; ?>" placeholder="<?php echo $pettFormEmailHolder; ?>" />
          <input type="image" src="<?php echo esc_url($getSubmitImage); ?>"/>
        </form>
      </div>
    </div>

    <?php echo $args['after_widget'];
  }

  /**
   * Outputs the options form on admin
   */
  public function form( $instance ) {
    // outputs the options form on admin
    $getURL = get_bloginfo('url');

    $default = array(
      'title' => '',
      'hidetitle' => 'on',
      'pett_optin_action' => $getURL,
      'pett_optin_extra' => '',
      'pett_optin_name' => 'FNAME',
      'pett_optin_email' => 'EMAIL',
      'pett_optin_name_holder' => 'Your name',
      'pett_optin_email_holder' => 'Your email address',
      'pett_optin_text' => 'Enter your form text here'
    );

		$instance = wp_parse_args( (array) $instance, $default  );

		$title = $instance['title'];
		$hidetitle = $instance['hidetitle'] ? 'on' : 'off';
    $pettFormAction = $instance['pett_optin_action'];
    $pettFormExtra = $instance['pett_optin_extra'];
    $pettFormName = $instance['pett_optin_name'];
    $pettFormEmail = $instance['pett_optin_email'];
    $pettFormNameHolder = $instance['pett_optin_name_holder'];
    $pettFormEmailHolder = $instance['pett_optin_email_holder'];
    $pettFormText = $instance['pett_optin_text']; ?>

    <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>

    <p>
      <label for="<?php echo $this->get_field_id( 'pett_optin_text' ); ?>"><?php _e( 'Form Text:' ); ?></label>
      <textarea class="widefat" id="<?php echo $this->get_field_id( 'pett_optin_text' ); ?>" name="<?php echo $this->get_field_name( 'pett_optin_text' ); ?>"><?php echo $pettFormText; ?></textarea>
    </p>

    <p>
  		<label for="<?php echo $this->get_field_id( 'pett_optin_action' ); ?>"><?php _e( 'Form Action:' ); ?></label>
  		<input class="widefat" id="<?php echo $this->get_field_id( 'pett_optin_action' ); ?>" name="<?php echo $this->get_field_name( 'pett_optin_action' ); ?>" type="text" value="<?php echo esc_url( $pettFormAction ); ?>">
		</p>

    <p>
  		<label for="<?php echo $this->get_field_id( 'pett_optin_extra' ); ?>"><?php _e( 'Form Extra Field:' ); ?></label>
  		<textarea class="widefat" id="<?php echo $this->get_field_id( 'pett_optin_extra' ); ?>" name="<?php echo $this->get_field_name( 'pett_optin_extra' ); ?>"><?php echo $pettFormExtra; ?></textarea>
		</p>

    <p>
  		<label for="<?php echo $this->get_field_id( 'pett_optin_name' ); ?>"><?php _e( 'Form Name:' ); ?></label>
  		<input class="widefat" id="<?php echo $this->get_field_id( 'pett_optin_name' ); ?>" name="<?php echo $this->get_field_name( 'pett_optin_name' ); ?>" type="text" value="<?php echo esc_attr( $pettFormName ); ?>">
		</p>

    <p>
      <label for="<?php echo $this->get_field_id( 'pett_optin_name_holder' ); ?>"><?php _e( 'Form Name Placeholder:' ); ?></label>
      <input class="widefat" id="<?php echo $this->get_field_id( 'pett_optin_name_holder' ); ?>" name="<?php echo $this->get_field_name( 'pett_optin_name_holder' ); ?>" type="text" value="<?php echo esc_attr($pettFormNameHolder); ?>">
    </p>

    <p>
      <label for="<?php echo $this->get_field_id( 'pett_optin_email' ); ?>"><?php _e( 'Form Email:' ); ?></label>
      <input class="widefat" id="<?php echo $this->get_field_id( 'pett_optin_email' ); ?>" name="<?php echo $this->get_field_name( 'pett_optin_email' ); ?>" type="email" value="<?php echo $pettFormEmail; ?>">
    </p>

    <p>
      <label for="<?php echo $this->get_field_id( 'pett_optin_email_holder' ); ?>"><?php _e( 'Form Email Address Placeholder:' ); ?></label>
      <input class="widefat" id="<?php echo $this->get_field_id( 'pett_optin_email_holder' ); ?>" name="<?php echo $this->get_field_name( 'pett_optin_email_holder' ); ?>" type="text" value="<?php echo esc_attr($pettFormEmailHolder); ?>">
    </p>
    
    <p>
      <input class="checkbox" id="<?php echo $this->get_field_id( 'hidetitle' ); ?>" name="<?php echo $this->get_field_name( 'hidetitle' ); ?>" type="checkbox" <?php checked($instance['hidetitle'], 'on'); ?>>
      <label for="<?php echo $this->get_field_id( 'hidetitle' ); ?>"><?php _e( 'Hide this widget title?' ); ?></label>
    </p>

  <?php }

  /**
   * Processing widget options on save
   */
  public function update( $new_instance, $old_instance ) {
    // processes widget options to be saved
    $instance = array();
		$instance['title'] = ( ! empty( $new_instance['title'] ) ) ? strip_tags( $new_instance['title'] ) : '';
		$instance['hidetitle'] = $new_instance['hidetitle'];
    $instance['pett_optin_action'] = $new_instance['pett_optin_action'];
    $instance['pett_optin_extra'] = $new_instance['pett_optin_extra'];
    $instance['pett_optin_name'] = $new_instance['pett_optin_name'];
    $instance['pett_optin_email'] = $new_instance['pett_optin_email'];
    $instance['pett_optin_name_holder'] = $new_instance['pett_optin_name_holder'];
    $instance['pett_optin_email_holder'] = $new_instance['pett_optin_email_holder'];
    $instance['pett_optin_text'] = $new_instance  ['pett_optin_text'];

		return $instance;
  }

}

add_action('widgets_init',
     create_function('', 'return register_widget("WendiePett_Optin");')
);