eventespresso / event-espresso-core

modules/single_page_checkout/EED_Single_Page_Checkout.module.php

Spacing +262 added lines, -262 removed lines

@@ -1,4 +1,4 @@ 
-<?php if ( ! defined('EVENT_ESPRESSO_VERSION')) {exit('No direct script access allowed');}
+<?php if ( ! defined('EVENT_ESPRESSO_VERSION')) {exit('No direct script access allowed'); }
 /**
  * Single Page Checkout (SPCO)
  *
@@ -47,8 +47,8 @@ 
 	 * @return EED_Single_Page_Checkout
 	 */
 	public static function instance() {
-		add_filter( 'EED_Single_Page_Checkout__SPCO_active', '__return_true' );
-		return parent::get_instance( __CLASS__ );
+		add_filter('EED_Single_Page_Checkout__SPCO_active', '__return_true');
+		return parent::get_instance(__CLASS__);
 	}
 
 
@@ -93,22 +93,22 @@ 
 	 */
 	public static function set_hooks_admin() {
 		EED_Single_Page_Checkout::set_definitions();
-		if ( defined( 'DOING_AJAX' )) {
+		if (defined('DOING_AJAX')) {
 			// going to start an output buffer in case anything gets accidentally output that might disrupt our JSON response
 			ob_start();
 			EED_Single_Page_Checkout::load_request_handler();
 			EED_Single_Page_Checkout::load_reg_steps();
 		} else {
 			// hook into the top of pre_get_posts to set the reg step routing, which gives other modules or plugins a chance to modify the reg steps, but just before the routes get called
-			add_action( 'pre_get_posts', array( 'EED_Single_Page_Checkout', 'load_reg_steps' ), 1 );
+			add_action('pre_get_posts', array('EED_Single_Page_Checkout', 'load_reg_steps'), 1);
 		}
 		// set ajax hooks
-		add_action( 'wp_ajax_process_reg_step', array( 'EED_Single_Page_Checkout', 'process_reg_step' ));
-		add_action( 'wp_ajax_nopriv_process_reg_step', array( 'EED_Single_Page_Checkout', 'process_reg_step' ));
-		add_action( 'wp_ajax_display_spco_reg_step', array( 'EED_Single_Page_Checkout', 'display_reg_step' ));
-		add_action( 'wp_ajax_nopriv_display_spco_reg_step', array( 'EED_Single_Page_Checkout', 'display_reg_step' ));
-		add_action( 'wp_ajax_update_reg_step', array( 'EED_Single_Page_Checkout', 'update_reg_step' ));
-		add_action( 'wp_ajax_nopriv_update_reg_step', array( 'EED_Single_Page_Checkout', 'update_reg_step' ));
+		add_action('wp_ajax_process_reg_step', array('EED_Single_Page_Checkout', 'process_reg_step'));
+		add_action('wp_ajax_nopriv_process_reg_step', array('EED_Single_Page_Checkout', 'process_reg_step'));
+		add_action('wp_ajax_display_spco_reg_step', array('EED_Single_Page_Checkout', 'display_reg_step'));
+		add_action('wp_ajax_nopriv_display_spco_reg_step', array('EED_Single_Page_Checkout', 'display_reg_step'));
+		add_action('wp_ajax_update_reg_step', array('EED_Single_Page_Checkout', 'update_reg_step'));
+		add_action('wp_ajax_nopriv_update_reg_step', array('EED_Single_Page_Checkout', 'update_reg_step'));
 	}
 
 
@@ -119,8 +119,8 @@ 
 	 * @param string $ajax_action
 	 * @throws \EE_Error
 	 */
-	public static function process_ajax_request( $ajax_action ) {
-		EE_Registry::instance()->REQ->set( 'action', $ajax_action );
+	public static function process_ajax_request($ajax_action) {
+		EE_Registry::instance()->REQ->set('action', $ajax_action);
 		EED_Single_Page_Checkout::instance()->_initialize();
 	}
 
@@ -132,7 +132,7 @@ 
 	 * @throws \EE_Error
 	 */
 	public static function display_reg_step() {
-		EED_Single_Page_Checkout::process_ajax_request( 'display_spco_reg_step' );
+		EED_Single_Page_Checkout::process_ajax_request('display_spco_reg_step');
 	}
 
 
@@ -143,7 +143,7 @@ 
 	 * @throws \EE_Error
 	 */
 	public static function process_reg_step() {
-		EED_Single_Page_Checkout::process_ajax_request( 'process_reg_step' );
+		EED_Single_Page_Checkout::process_ajax_request('process_reg_step');
 	}
 
 
@@ -154,7 +154,7 @@ 
 	 * @throws \EE_Error
 	 */
 	public static function update_reg_step() {
-		EED_Single_Page_Checkout::process_ajax_request( 'update_reg_step' );
+		EED_Single_Page_Checkout::process_ajax_request('update_reg_step');
 	}
 
 
@@ -167,7 +167,7 @@ 
 	 * @throws \EE_Error
 	 */
 	public static function update_checkout() {
-		EED_Single_Page_Checkout::process_ajax_request( 'update_checkout' );
+		EED_Single_Page_Checkout::process_ajax_request('update_checkout');
 	}
 
 
@@ -180,8 +180,8 @@ 
 	 */
 	public static function load_request_handler() {
 		// load core Request_Handler class
-		if ( ! isset( EE_Registry::instance()->REQ )) {
-			EE_Registry::instance()->load_core( 'Request_Handler' );
+		if ( ! isset(EE_Registry::instance()->REQ)) {
+			EE_Registry::instance()->load_core('Request_Handler');
 		}
 	}
 
@@ -195,14 +195,14 @@ 
 	 * @throws \EE_Error
 	 */
 	public static function set_definitions() {
-		define( 'SPCO_BASE_PATH', rtrim( str_replace( array( '\\', '/' ), DS, plugin_dir_path( __FILE__ )), DS ) . DS );
-		define( 'SPCO_CSS_URL', plugin_dir_url( __FILE__ ) . 'css' . DS );
-		define( 'SPCO_IMG_URL', plugin_dir_url( __FILE__ ) . 'img' . DS );
-		define( 'SPCO_JS_URL', plugin_dir_url( __FILE__ ) . 'js' . DS );
-		define( 'SPCO_INC_PATH', SPCO_BASE_PATH . 'inc' . DS );
-		define( 'SPCO_REG_STEPS_PATH', SPCO_BASE_PATH . 'reg_steps' . DS );
-		define( 'SPCO_TEMPLATES_PATH', SPCO_BASE_PATH . 'templates' . DS );
-		EEH_Autoloader::register_autoloaders_for_each_file_in_folder( SPCO_BASE_PATH, TRUE );
+		define('SPCO_BASE_PATH', rtrim(str_replace(array('\\', '/'), DS, plugin_dir_path(__FILE__)), DS).DS);
+		define('SPCO_CSS_URL', plugin_dir_url(__FILE__).'css'.DS);
+		define('SPCO_IMG_URL', plugin_dir_url(__FILE__).'img'.DS);
+		define('SPCO_JS_URL', plugin_dir_url(__FILE__).'js'.DS);
+		define('SPCO_INC_PATH', SPCO_BASE_PATH.'inc'.DS);
+		define('SPCO_REG_STEPS_PATH', SPCO_BASE_PATH.'reg_steps'.DS);
+		define('SPCO_TEMPLATES_PATH', SPCO_BASE_PATH.'templates'.DS);
+		EEH_Autoloader::register_autoloaders_for_each_file_in_folder(SPCO_BASE_PATH, TRUE);
 	}
 
 
@@ -217,7 +217,7 @@ 
 	 */
 	public static function load_reg_steps() {
 		static $reg_steps_loaded = FALSE;
-		if ( $reg_steps_loaded ) {
+		if ($reg_steps_loaded) {
 			return;
 		}
 		// filter list of reg_steps
@@ -226,24 +226,24 @@ 
 			EED_Single_Page_Checkout::get_reg_steps()
 		);
 		// sort by key (order)
-		ksort( $reg_steps_to_load );
+		ksort($reg_steps_to_load);
 		// loop through folders
-		foreach ( $reg_steps_to_load as $order => $reg_step ) {
+		foreach ($reg_steps_to_load as $order => $reg_step) {
 			// we need a
-			if ( isset( $reg_step['file_path'], $reg_step['class_name'], $reg_step['slug'] )) {
+			if (isset($reg_step['file_path'], $reg_step['class_name'], $reg_step['slug'])) {
 				// copy over to the reg_steps_array
-				EED_Single_Page_Checkout::$_reg_steps_array[ $order ] = $reg_step;
+				EED_Single_Page_Checkout::$_reg_steps_array[$order] = $reg_step;
 				// register custom key route for each reg step
 				// ie: step=>"slug" - this is the entire reason we load the reg steps array now
-				EE_Config::register_route( $reg_step['slug'], 'EED_Single_Page_Checkout', 'run', 'step' );
+				EE_Config::register_route($reg_step['slug'], 'EED_Single_Page_Checkout', 'run', 'step');
 				// add AJAX or other hooks
-				if ( isset( $reg_step['has_hooks'] ) && $reg_step['has_hooks'] ) {
+				if (isset($reg_step['has_hooks']) && $reg_step['has_hooks']) {
 					// setup autoloaders if necessary
-					if ( ! class_exists( $reg_step['class_name'] )) {
-						EEH_Autoloader::register_autoloaders_for_each_file_in_folder( $reg_step['file_path'], TRUE );
+					if ( ! class_exists($reg_step['class_name'])) {
+						EEH_Autoloader::register_autoloaders_for_each_file_in_folder($reg_step['file_path'], TRUE);
 					}
-					if ( is_callable( $reg_step['class_name'], 'set_hooks' )) {
-						call_user_func( array( $reg_step['class_name'], 'set_hooks' ));
+					if (is_callable($reg_step['class_name'], 'set_hooks')) {
+						call_user_func(array($reg_step['class_name'], 'set_hooks'));
 					}
 				}
 			}
@@ -262,28 +262,28 @@ 
 	 */
 	public static function get_reg_steps() {
 		$reg_steps = EE_Registry::instance()->CFG->registration->reg_steps;
-		if ( empty( $reg_steps )) {
+		if (empty($reg_steps)) {
 			$reg_steps = array(
 				10 => array(
-					'file_path' => SPCO_REG_STEPS_PATH . 'attendee_information',
+					'file_path' => SPCO_REG_STEPS_PATH.'attendee_information',
 					'class_name' => 'EE_SPCO_Reg_Step_Attendee_Information',
 					'slug' => 'attendee_information',
 					'has_hooks' => FALSE
 				),
 				20 => array(
-					'file_path' => SPCO_REG_STEPS_PATH . 'registration_confirmation',
+					'file_path' => SPCO_REG_STEPS_PATH.'registration_confirmation',
 					'class_name' => 'EE_SPCO_Reg_Step_Registration_Confirmation',
 					'slug' => 'registration_confirmation',
 					'has_hooks' => FALSE
 				),
 				30 => array(
-					'file_path' => SPCO_REG_STEPS_PATH . 'payment_options',
+					'file_path' => SPCO_REG_STEPS_PATH.'payment_options',
 					'class_name' => 'EE_SPCO_Reg_Step_Payment_Options',
 					'slug' => 'payment_options',
 					'has_hooks' => TRUE
 				),
 				999 => array(
-					'file_path' => SPCO_REG_STEPS_PATH . 'finalize_registration',
+					'file_path' => SPCO_REG_STEPS_PATH.'finalize_registration',
 					'class_name' => 'EE_SPCO_Reg_Step_Finalize_Registration',
 					'slug' => 'finalize_registration',
 					'has_hooks' => FALSE
@@ -304,9 +304,9 @@ 
 	 */
 	public static function registration_checkout_for_admin() {
 		EED_Single_Page_Checkout::load_reg_steps();
-		EE_Registry::instance()->REQ->set( 'step', 'attendee_information' );
-		EE_Registry::instance()->REQ->set( 'action', 'display_spco_reg_step' );
-		EE_Registry::instance()->REQ->set( 'process_form_submission', false );
+		EE_Registry::instance()->REQ->set('step', 'attendee_information');
+		EE_Registry::instance()->REQ->set('action', 'display_spco_reg_step');
+		EE_Registry::instance()->REQ->set('process_form_submission', false);
 		EED_Single_Page_Checkout::instance()->_initialize();
 		EED_Single_Page_Checkout::instance()->_display_spco_reg_form();
 		return EE_Registry::instance()->REQ->get_output();
@@ -323,15 +323,15 @@ 
 	 */
 	public static function process_registration_from_admin() {
 		EED_Single_Page_Checkout::load_reg_steps();
-		EE_Registry::instance()->REQ->set( 'step', 'attendee_information' );
-		EE_Registry::instance()->REQ->set( 'action', 'process_reg_step' );
-		EE_Registry::instance()->REQ->set( 'process_form_submission', true );
+		EE_Registry::instance()->REQ->set('step', 'attendee_information');
+		EE_Registry::instance()->REQ->set('action', 'process_reg_step');
+		EE_Registry::instance()->REQ->set('process_form_submission', true);
 		EED_Single_Page_Checkout::instance()->_initialize();
-		if ( EED_Single_Page_Checkout::instance()->checkout->current_step->completed() ) {
-			$final_reg_step = end( EED_Single_Page_Checkout::instance()->checkout->reg_steps );
-			if ( $final_reg_step instanceof EE_SPCO_Reg_Step_Finalize_Registration ) {
-				EED_Single_Page_Checkout::instance()->checkout->set_reg_step_initiated( $final_reg_step );
-				if ( $final_reg_step->process_reg_step() ) {
+		if (EED_Single_Page_Checkout::instance()->checkout->current_step->completed()) {
+			$final_reg_step = end(EED_Single_Page_Checkout::instance()->checkout->reg_steps);
+			if ($final_reg_step instanceof EE_SPCO_Reg_Step_Finalize_Registration) {
+				EED_Single_Page_Checkout::instance()->checkout->set_reg_step_initiated($final_reg_step);
+				if ($final_reg_step->process_reg_step()) {
 					$final_reg_step->set_completed();
 					EED_Single_Page_Checkout::instance()->checkout->update_txn_reg_steps_array();
 					return EED_Single_Page_Checkout::instance()->checkout->transaction;
@@ -351,11 +351,11 @@ 
 	 * @return    void
 	 * @throws \EE_Error
 	 */
-	public function run( $WP_Query ) {
+	public function run($WP_Query) {
 		if (
 			$WP_Query instanceof WP_Query
 			&& $WP_Query->is_main_query()
-			&& apply_filters( 'FHEE__EED_Single_Page_Checkout__run', true )
+			&& apply_filters('FHEE__EED_Single_Page_Checkout__run', true)
 		) {
 			$this->_initialize();
 		}
@@ -371,8 +371,8 @@ 
 	 * @return    void
 	 * @throws \EE_Error
 	 */
-	public static function init( $WP_Query ) {
-		EED_Single_Page_Checkout::instance()->run( $WP_Query );
+	public static function init($WP_Query) {
+		EED_Single_Page_Checkout::instance()->run($WP_Query);
 	}
 
 
@@ -386,34 +386,34 @@ 
 	 */
 	private function _initialize() {
 		// ensure SPCO doesn't run twice
-		if ( EED_Single_Page_Checkout::$_initialized ) {
+		if (EED_Single_Page_Checkout::$_initialized) {
 			return;
 		}
 		try {
 			// setup the EE_Checkout object
 			$this->checkout = $this->_initialize_checkout();
 			// filter checkout
-			$this->checkout = apply_filters( 'FHEE__EED_Single_Page_Checkout___initialize__checkout', $this->checkout );
+			$this->checkout = apply_filters('FHEE__EED_Single_Page_Checkout___initialize__checkout', $this->checkout);
 			// get the $_GET
 			$this->_get_request_vars();
 			// filter continue_reg
-			$this->checkout->continue_reg = apply_filters( 'FHEE__EED_Single_Page_Checkout__init___continue_reg', TRUE, $this->checkout );
+			$this->checkout->continue_reg = apply_filters('FHEE__EED_Single_Page_Checkout__init___continue_reg', TRUE, $this->checkout);
 			// load the reg steps array
-			if ( ! $this->_load_and_instantiate_reg_steps() ) {
+			if ( ! $this->_load_and_instantiate_reg_steps()) {
 				EED_Single_Page_Checkout::$_initialized = true;
 				return;
 			}
 			// set the current step
-			$this->checkout->set_current_step( $this->checkout->step );
+			$this->checkout->set_current_step($this->checkout->step);
 			// and the next step
 			$this->checkout->set_next_step();
 			// was there already a valid transaction in the checkout from the session ?
-			if ( ! $this->checkout->transaction instanceof EE_Transaction ) {
+			if ( ! $this->checkout->transaction instanceof EE_Transaction) {
 				// get transaction from db or session
 				$this->checkout->transaction = $this->checkout->reg_url_link && ! is_admin()
 					? $this->_get_transaction_and_cart_for_previous_visit()
 					: $this->_get_cart_for_current_session_and_setup_new_transaction();
-				if ( ! $this->checkout->transaction instanceof EE_Transaction ) {
+				if ( ! $this->checkout->transaction instanceof EE_Transaction) {
 					// add some style and make it dance
 					$this->checkout->transaction = EE_Transaction::new_instance();
 					$this->add_styles_and_scripts();
@@ -421,10 +421,10 @@ 
 					return;
 				}
 				// and the registrations for the transaction
-				$this->_get_registrations( $this->checkout->transaction );
+				$this->_get_registrations($this->checkout->transaction);
 			}
 			// verify that everything has been setup correctly
-			if ( ! $this->_final_verifications() ) {
+			if ( ! $this->_final_verifications()) {
 				EED_Single_Page_Checkout::$_initialized = true;
 				return;
 			}
@@ -449,9 +449,9 @@ 
 			// set no cache headers and constants
 			EE_System::do_not_cache();
 			// add anchor
-			add_action( 'loop_start', array( $this, 'set_checkout_anchor' ), 1 );
-		} catch ( Exception $e ) {
-			EE_Error::add_error( $e->getMessage(), __FILE__, __FUNCTION__, __LINE__ );
+			add_action('loop_start', array($this, 'set_checkout_anchor'), 1);
+		} catch (Exception $e) {
+			EE_Error::add_error($e->getMessage(), __FILE__, __FUNCTION__, __LINE__);
 		}
 	}
 
@@ -469,20 +469,20 @@ 
 		// look in session for existing checkout
 		$checkout = EE_Registry::instance()->SSN->checkout();
 		// verify
-		if ( ! $checkout instanceof EE_Checkout ) {
+		if ( ! $checkout instanceof EE_Checkout) {
 			// instantiate EE_Checkout object for handling the properties of the current checkout process
-			$checkout = EE_Registry::instance()->load_file( SPCO_INC_PATH, 'EE_Checkout', 'class', array(), FALSE  );
+			$checkout = EE_Registry::instance()->load_file(SPCO_INC_PATH, 'EE_Checkout', 'class', array(), FALSE);
 		} else {
-			if ( $checkout->current_step->is_final_step() && $checkout->exit_spco() === true )  {
+			if ($checkout->current_step->is_final_step() && $checkout->exit_spco() === true) {
 				$this->unlock_transaction();
-				wp_safe_redirect( $checkout->redirect_url );
+				wp_safe_redirect($checkout->redirect_url);
 				exit();
 			}
 		}
-		$checkout = apply_filters( 'FHEE__EED_Single_Page_Checkout___initialize_checkout__checkout', $checkout );
+		$checkout = apply_filters('FHEE__EED_Single_Page_Checkout___initialize_checkout__checkout', $checkout);
 		// verify again
-		if ( ! $checkout instanceof EE_Checkout ) {
-			throw new EE_Error( __( 'The EE_Checkout class could not be loaded.', 'event_espresso' ) );
+		if ( ! $checkout instanceof EE_Checkout) {
+			throw new EE_Error(__('The EE_Checkout class could not be loaded.', 'event_espresso'));
 		}
 		// reset anything that needs a clean slate for each request
 		$checkout->reset_for_current_request();
@@ -502,24 +502,24 @@ 
 		// load classes
 		EED_Single_Page_Checkout::load_request_handler();
 		//make sure this request is marked as belonging to EE
-		EE_Registry::instance()->REQ->set_espresso_page( TRUE );
+		EE_Registry::instance()->REQ->set_espresso_page(TRUE);
 		// which step is being requested ?
-		$this->checkout->step = EE_Registry::instance()->REQ->get( 'step', $this->_get_first_step() );
+		$this->checkout->step = EE_Registry::instance()->REQ->get('step', $this->_get_first_step());
 		// which step is being edited ?
-		$this->checkout->edit_step = EE_Registry::instance()->REQ->get( 'edit_step', '' );
+		$this->checkout->edit_step = EE_Registry::instance()->REQ->get('edit_step', '');
 		// and what we're doing on the current step
-		$this->checkout->action = EE_Registry::instance()->REQ->get( 'action', 'display_spco_reg_step' );
+		$this->checkout->action = EE_Registry::instance()->REQ->get('action', 'display_spco_reg_step');
 		// returning to edit ?
-		$this->checkout->reg_url_link = EE_Registry::instance()->REQ->get( 'e_reg_url_link', '' );
+		$this->checkout->reg_url_link = EE_Registry::instance()->REQ->get('e_reg_url_link', '');
 		// or some other kind of revisit ?
-		$this->checkout->revisit = EE_Registry::instance()->REQ->get( 'revisit', FALSE );
+		$this->checkout->revisit = EE_Registry::instance()->REQ->get('revisit', FALSE);
 		// and whether or not to generate a reg form for this request
-		$this->checkout->generate_reg_form = EE_Registry::instance()->REQ->get( 'generate_reg_form', TRUE ); 		// TRUE 	FALSE
+		$this->checkout->generate_reg_form = EE_Registry::instance()->REQ->get('generate_reg_form', TRUE); // TRUE 	FALSE
 		// and whether or not to process a reg form submission for this request
-		$this->checkout->process_form_submission = EE_Registry::instance()->REQ->get( 'process_form_submission', FALSE ); 		// TRUE 	FALSE
+		$this->checkout->process_form_submission = EE_Registry::instance()->REQ->get('process_form_submission', FALSE); // TRUE 	FALSE
 		$this->checkout->process_form_submission = $this->checkout->action !== 'display_spco_reg_step'
 			? $this->checkout->process_form_submission
-			: FALSE; 		// TRUE 	FALSE
+			: FALSE; // TRUE 	FALSE
 		// $this->_display_request_vars();
 	}
 
@@ -532,17 +532,17 @@ 
 	 * @return    void
 	 */
 	protected function _display_request_vars() {
-		if ( ! WP_DEBUG ) {
+		if ( ! WP_DEBUG) {
 			return;
 		}
-		EEH_Debug_Tools::printr( $_REQUEST, '$_REQUEST', __FILE__, __LINE__ );
-		EEH_Debug_Tools::printr( $this->checkout->step, '$this->checkout->step', __FILE__, __LINE__ );
-		EEH_Debug_Tools::printr( $this->checkout->edit_step, '$this->checkout->edit_step', __FILE__, __LINE__ );
-		EEH_Debug_Tools::printr( $this->checkout->action, '$this->checkout->action', __FILE__, __LINE__ );
-		EEH_Debug_Tools::printr( $this->checkout->reg_url_link, '$this->checkout->reg_url_link', __FILE__, __LINE__ );
-		EEH_Debug_Tools::printr( $this->checkout->revisit, '$this->checkout->revisit', __FILE__, __LINE__ );
-		EEH_Debug_Tools::printr( $this->checkout->generate_reg_form, '$this->checkout->generate_reg_form', __FILE__, __LINE__ );
-		EEH_Debug_Tools::printr( $this->checkout->process_form_submission, '$this->checkout->process_form_submission', __FILE__, __LINE__ );
+		EEH_Debug_Tools::printr($_REQUEST, '$_REQUEST', __FILE__, __LINE__);
+		EEH_Debug_Tools::printr($this->checkout->step, '$this->checkout->step', __FILE__, __LINE__);
+		EEH_Debug_Tools::printr($this->checkout->edit_step, '$this->checkout->edit_step', __FILE__, __LINE__);
+		EEH_Debug_Tools::printr($this->checkout->action, '$this->checkout->action', __FILE__, __LINE__);
+		EEH_Debug_Tools::printr($this->checkout->reg_url_link, '$this->checkout->reg_url_link', __FILE__, __LINE__);
+		EEH_Debug_Tools::printr($this->checkout->revisit, '$this->checkout->revisit', __FILE__, __LINE__);
+		EEH_Debug_Tools::printr($this->checkout->generate_reg_form, '$this->checkout->generate_reg_form', __FILE__, __LINE__);
+		EEH_Debug_Tools::printr($this->checkout->process_form_submission, '$this->checkout->process_form_submission', __FILE__, __LINE__);
 	}
 
 
@@ -556,8 +556,8 @@ 
 	 * @return    array
 	 */
 	private function _get_first_step() {
-		$first_step = reset( EED_Single_Page_Checkout::$_reg_steps_array );
-		return isset( $first_step['slug'] ) ? $first_step['slug'] : 'attendee_information';
+		$first_step = reset(EED_Single_Page_Checkout::$_reg_steps_array);
+		return isset($first_step['slug']) ? $first_step['slug'] : 'attendee_information';
 	}
 
 
@@ -573,27 +573,27 @@ 
 	private function _load_and_instantiate_reg_steps() {
 		// have reg_steps already been instantiated ?
 		if (
-			empty( $this->checkout->reg_steps ) ||
-			apply_filters( 'FHEE__Single_Page_Checkout__load_reg_steps__reload_reg_steps', false, $this->checkout )
+			empty($this->checkout->reg_steps) ||
+			apply_filters('FHEE__Single_Page_Checkout__load_reg_steps__reload_reg_steps', false, $this->checkout)
 		) {
 			// if not, then loop through raw reg steps array
-			foreach ( EED_Single_Page_Checkout::$_reg_steps_array as $order => $reg_step ) {
-				if ( ! $this->_load_and_instantiate_reg_step( $reg_step, $order )) {
+			foreach (EED_Single_Page_Checkout::$_reg_steps_array as $order => $reg_step) {
+				if ( ! $this->_load_and_instantiate_reg_step($reg_step, $order)) {
 					return false;
 				}
 			}
 			EE_Registry::instance()->CFG->registration->skip_reg_confirmation = TRUE;
 			EE_Registry::instance()->CFG->registration->reg_confirmation_last = TRUE;
 			// skip the registration_confirmation page ?
-			if ( EE_Registry::instance()->CFG->registration->skip_reg_confirmation ) {
+			if (EE_Registry::instance()->CFG->registration->skip_reg_confirmation) {
 				// just remove it from the reg steps array
-				$this->checkout->remove_reg_step( 'registration_confirmation', false );
+				$this->checkout->remove_reg_step('registration_confirmation', false);
 			} else if (
-				isset( $this->checkout->reg_steps['registration_confirmation'] )
+				isset($this->checkout->reg_steps['registration_confirmation'])
 				&& EE_Registry::instance()->CFG->registration->reg_confirmation_last
 			) {
 				// set the order to something big like 100
-				$this->checkout->set_reg_step_order( 'registration_confirmation', 100 );
+				$this->checkout->set_reg_step_order('registration_confirmation', 100);
 			}
 			// filter the array for good luck
 			$this->checkout->reg_steps = apply_filters(
@@ -603,13 +603,13 @@ 
 			// finally re-sort based on the reg step class order properties
 			$this->checkout->sort_reg_steps();
 		} else {
-			foreach ( $this->checkout->reg_steps as $reg_step ) {
+			foreach ($this->checkout->reg_steps as $reg_step) {
 				// set all current step stati to FALSE
-				$reg_step->set_is_current_step( FALSE );
+				$reg_step->set_is_current_step(FALSE);
 			}
 		}
-		if ( empty( $this->checkout->reg_steps )) {
-			EE_Error::add_error( __( 'No Reg Steps were loaded..', 'event_espresso' ), __FILE__, __FUNCTION__, __LINE__);
+		if (empty($this->checkout->reg_steps)) {
+			EE_Error::add_error(__('No Reg Steps were loaded..', 'event_espresso'), __FILE__, __FUNCTION__, __LINE__);
 			return false;
 		}
 			// make reg step details available to JS
@@ -627,10 +627,10 @@ 
 	 * @param int   $order
 	 * @return bool
 	 */
-	private function _load_and_instantiate_reg_step( $reg_step = array(), $order = 0 ) {
+	private function _load_and_instantiate_reg_step($reg_step = array(), $order = 0) {
 
 		// we need a file_path, class_name, and slug to add a reg step
-		if ( isset( $reg_step['file_path'], $reg_step['class_name'], $reg_step['slug'] )) {
+		if (isset($reg_step['file_path'], $reg_step['class_name'], $reg_step['slug'])) {
 			// if editing a specific step, but this is NOT that step... (and it's not the 'finalize_registration' step)
 			if (
 				$this->checkout->reg_url_link
@@ -648,26 +648,26 @@ 
 				FALSE
 			);
 			// did we gets the goods ?
-			if ( $reg_step_obj instanceof EE_SPCO_Reg_Step ) {
+			if ($reg_step_obj instanceof EE_SPCO_Reg_Step) {
 				// set reg step order based on config
-				$reg_step_obj->set_order( $order );
+				$reg_step_obj->set_order($order);
 				// add instantiated reg step object to the master reg steps array
-				$this->checkout->add_reg_step( $reg_step_obj );
+				$this->checkout->add_reg_step($reg_step_obj);
 			} else {
 				EE_Error::add_error(
-					__( 'The current step could not be set.', 'event_espresso' ),
+					__('The current step could not be set.', 'event_espresso'),
 					__FILE__, __FUNCTION__, __LINE__
 				);
 				return false;
 			}
 		} else {
-			if ( WP_DEBUG ) {
+			if (WP_DEBUG) {
 				EE_Error::add_error(
 					sprintf(
-						__( 'A registration step could not be loaded. One or more of the following data points is invalid:%4$s%5$sFile Path: %1$s%6$s%5$sClass Name: %2$s%6$s%5$sSlug: %3$s%6$s%7$s', 'event_espresso' ),
-						isset( $reg_step['file_path'] ) ? $reg_step['file_path'] : '',
-						isset( $reg_step['class_name'] ) ? $reg_step['class_name'] : '',
-						isset( $reg_step['slug'] ) ? $reg_step['slug'] : '',
+						__('A registration step could not be loaded. One or more of the following data points is invalid:%4$s%5$sFile Path: %1$s%6$s%5$sClass Name: %2$s%6$s%5$sSlug: %3$s%6$s%7$s', 'event_espresso'),
+						isset($reg_step['file_path']) ? $reg_step['file_path'] : '',
+						isset($reg_step['class_name']) ? $reg_step['class_name'] : '',
+						isset($reg_step['slug']) ? $reg_step['slug'] : '',
 						'<ul>',
 						'<li>',
 						'</li>',
@@ -691,16 +691,16 @@ 
 	 */
 	private function _get_transaction_and_cart_for_previous_visit() {
 		/** @var $TXN_model EEM_Transaction */
-		$TXN_model = EE_Registry::instance()->load_model( 'Transaction' );
+		$TXN_model = EE_Registry::instance()->load_model('Transaction');
 		// because the reg_url_link is present in the request, this is a return visit to SPCO, so we'll get the transaction data from the db
-		$transaction = $TXN_model->get_transaction_from_reg_url_link( $this->checkout->reg_url_link );
+		$transaction = $TXN_model->get_transaction_from_reg_url_link($this->checkout->reg_url_link);
 		// verify transaction
-		if ( $transaction instanceof EE_Transaction ) {
+		if ($transaction instanceof EE_Transaction) {
 			// and get the cart that was used for that transaction
-			$this->checkout->cart = $this->_get_cart_for_transaction( $transaction );
+			$this->checkout->cart = $this->_get_cart_for_transaction($transaction);
 			return $transaction;
 		} else {
-			EE_Error::add_error( __( 'Your Registration and Transaction information could not be retrieved from the db.', 'event_espresso' ), __FILE__, __FUNCTION__, __LINE__);
+			EE_Error::add_error(__('Your Registration and Transaction information could not be retrieved from the db.', 'event_espresso'), __FILE__, __FUNCTION__, __LINE__);
 			return NULL;
 		}
 	}
@@ -714,8 +714,8 @@ 
 	 * @param EE_Transaction $transaction
 	 * @return EE_Cart
 	 */
-	private function _get_cart_for_transaction( $transaction ) {
-		return $this->checkout->get_cart_for_transaction( $transaction );
+	private function _get_cart_for_transaction($transaction) {
+		return $this->checkout->get_cart_for_transaction($transaction);
 	}
 
 
@@ -727,8 +727,8 @@ 
 	 * @param EE_Transaction $transaction
 	 * @return EE_Cart
 	 */
-	public function get_cart_for_transaction( EE_Transaction $transaction ) {
-		return $this->checkout->get_cart_for_transaction( $transaction );
+	public function get_cart_for_transaction(EE_Transaction $transaction) {
+		return $this->checkout->get_cart_for_transaction($transaction);
 	}
 
 
@@ -744,17 +744,17 @@ 
 	private function _get_cart_for_current_session_and_setup_new_transaction() {
 		//  if there's no transaction, then this is the FIRST visit to SPCO
 		// so load up the cart ( passing nothing for the TXN because it doesn't exist yet )
-		$this->checkout->cart = $this->_get_cart_for_transaction( NULL );
+		$this->checkout->cart = $this->_get_cart_for_transaction(NULL);
 		// and then create a new transaction
 		$transaction = $this->_initialize_transaction();
 		// verify transaction
-		if ( $transaction instanceof EE_Transaction ) {
+		if ($transaction instanceof EE_Transaction) {
 			// save it so that we have an ID for other objects to use
 			$transaction->save();
 			// and save TXN data to the cart
-			$this->checkout->cart->get_grand_total()->save_this_and_descendants_to_txn( $transaction->ID() );
+			$this->checkout->cart->get_grand_total()->save_this_and_descendants_to_txn($transaction->ID());
 		} else {
-			EE_Error::add_error( __( 'A Valid Transaction could not be initialized.', 'event_espresso' ), __FILE__, __FUNCTION__, __LINE__ );
+			EE_Error::add_error(__('A Valid Transaction could not be initialized.', 'event_espresso'), __FILE__, __FUNCTION__, __LINE__);
 		}
 		return $transaction;
 	}
@@ -774,15 +774,15 @@ 
 			// grab the cart grand total
 			$cart_total = $this->checkout->cart->get_cart_grand_total();
 			// create new TXN
-			return EE_Transaction::new_instance( array(
+			return EE_Transaction::new_instance(array(
 				'TXN_timestamp' 	=> time(),
 				'TXN_reg_steps' 		=> $this->checkout->initialize_txn_reg_steps_array(),
 				'TXN_total' 				=> $cart_total > 0 ? $cart_total : 0,
 				'TXN_paid' 				=> 0,
 				'STS_ID' 					=> EEM_Transaction::failed_status_code,
 			));
-		} catch( Exception $e ) {
-			EE_Error::add_error( $e->getMessage(), __FILE__, __FUNCTION__, __LINE__);
+		} catch (Exception $e) {
+			EE_Error::add_error($e->getMessage(), __FILE__, __FUNCTION__, __LINE__);
 		}
 		return NULL;
 	}
@@ -797,38 +797,38 @@ 
 	 * @return EE_Cart
 	 * @throws \EE_Error
 	 */
-	private function _get_registrations( EE_Transaction $transaction ) {
+	private function _get_registrations(EE_Transaction $transaction) {
 		// first step: grab the registrants  { : o
-		$registrations = $transaction->registrations( $this->checkout->reg_cache_where_params, true );
+		$registrations = $transaction->registrations($this->checkout->reg_cache_where_params, true);
 		// verify registrations have been set
-		if ( empty( $registrations )) {
+		if (empty($registrations)) {
 			// if no cached registrations, then check the db
-			$registrations = $transaction->registrations( $this->checkout->reg_cache_where_params, false );
+			$registrations = $transaction->registrations($this->checkout->reg_cache_where_params, false);
 			// still nothing ? well as long as this isn't a revisit
-			if ( empty( $registrations ) && ! $this->checkout->revisit ) {
+			if (empty($registrations) && ! $this->checkout->revisit) {
 				// generate new registrations from scratch
-				$registrations = $this->_initialize_registrations( $transaction );
+				$registrations = $this->_initialize_registrations($transaction);
 			}
 		}
 		// sort by their original registration order
-		usort( $registrations, array( 'EED_Single_Page_Checkout', 'sort_registrations_by_REG_count' ));
+		usort($registrations, array('EED_Single_Page_Checkout', 'sort_registrations_by_REG_count'));
 		// then loop thru the array
-		foreach ( $registrations as $registration ) {
+		foreach ($registrations as $registration) {
 			// verify each registration
-			if ( $registration instanceof EE_Registration ) {
+			if ($registration instanceof EE_Registration) {
 				// we display all attendee info for the primary registrant
-				if ( $this->checkout->reg_url_link === $registration->reg_url_link()
+				if ($this->checkout->reg_url_link === $registration->reg_url_link()
 				     && $registration->is_primary_registrant()
 				) {
 					$this->checkout->primary_revisit = true;
 					break;
-				} else if ( $this->checkout->revisit
+				} else if ($this->checkout->revisit
 				            && $this->checkout->reg_url_link !== $registration->reg_url_link()
 				) {
 					// but hide info if it doesn't belong to you
-					$transaction->clear_cache( 'Registration', $registration->ID() );
+					$transaction->clear_cache('Registration', $registration->ID());
 				}
-				$this->checkout->set_reg_status_updated( $registration->ID(), false );
+				$this->checkout->set_reg_status_updated($registration->ID(), false);
 			}
 		}
 	}
@@ -843,17 +843,17 @@ 
 	 * @return    array
 	 * @throws \EE_Error
 	 */
-	private function _initialize_registrations( EE_Transaction $transaction ) {
+	private function _initialize_registrations(EE_Transaction $transaction) {
 		$att_nmbr = 0;
 		$registrations = array();
-		if ( $transaction instanceof EE_Transaction ) {
+		if ($transaction instanceof EE_Transaction) {
 			/** @type EE_Registration_Processor $registration_processor */
-			$registration_processor = EE_Registry::instance()->load_class( 'Registration_Processor' );
+			$registration_processor = EE_Registry::instance()->load_class('Registration_Processor');
 			$this->checkout->total_ticket_count = $this->checkout->cart->all_ticket_quantity_count();
 			// now let's add the cart items to the $transaction
-			foreach ( $this->checkout->cart->get_tickets() as $line_item ) {
+			foreach ($this->checkout->cart->get_tickets() as $line_item) {
 				//do the following for each ticket of this type they selected
-				for ( $x = 1; $x <= $line_item->quantity(); $x++ ) {
+				for ($x = 1; $x <= $line_item->quantity(); $x++) {
 					$att_nmbr++;
 					$registration = $registration_processor->generate_ONE_registration_from_line_item(
 						$line_item,
@@ -861,12 +861,12 @@ 
 						$att_nmbr,
 						$this->checkout->total_ticket_count
 					);
-					if ( $registration instanceof EE_Registration ) {
-						$registrations[ $registration->ID() ] = $registration;
+					if ($registration instanceof EE_Registration) {
+						$registrations[$registration->ID()] = $registration;
 					}
 				}
 			}
-			$registration_processor->fix_reg_final_price_rounding_issue( $transaction );
+			$registration_processor->fix_reg_final_price_rounding_issue($transaction);
 		}
 		return $registrations;
 	}
@@ -881,12 +881,12 @@ 
 	 * @param EE_Registration $reg_B
 	 * @return array()
 	 */
-	public static function sort_registrations_by_REG_count( EE_Registration $reg_A, EE_Registration $reg_B ) {
+	public static function sort_registrations_by_REG_count(EE_Registration $reg_A, EE_Registration $reg_B) {
 		// this shouldn't ever happen within the same TXN, but oh well
-		if ( $reg_A->count() === $reg_B->count() ) {
+		if ($reg_A->count() === $reg_B->count()) {
 			return 0;
 		}
-		return ( $reg_A->count() > $reg_B->count() ) ? 1 : -1;
+		return ($reg_A->count() > $reg_B->count()) ? 1 : -1;
 	}
 
 
@@ -901,21 +901,21 @@ 
 	 */
 	private function _final_verifications() {
 		// filter checkout
-		$this->checkout = apply_filters( 'FHEE__EED_Single_Page_Checkout___final_verifications__checkout', $this->checkout );
+		$this->checkout = apply_filters('FHEE__EED_Single_Page_Checkout___final_verifications__checkout', $this->checkout);
 		//verify that current step is still set correctly
-		if ( ! $this->checkout->current_step instanceof EE_SPCO_Reg_Step ) {
-			EE_Error::add_error( __( 'We\'re sorry but the registration process can not proceed because one or more registration steps were not setup correctly. Please refresh the page and try again or contact support.', 'event_espresso' ), __FILE__, __FUNCTION__, __LINE__ );
+		if ( ! $this->checkout->current_step instanceof EE_SPCO_Reg_Step) {
+			EE_Error::add_error(__('We\'re sorry but the registration process can not proceed because one or more registration steps were not setup correctly. Please refresh the page and try again or contact support.', 'event_espresso'), __FILE__, __FUNCTION__, __LINE__);
 			return false;
 		}
 		// if returning to SPCO, then verify that primary registrant is set
-		if ( ! empty( $this->checkout->reg_url_link )) {
+		if ( ! empty($this->checkout->reg_url_link)) {
 			$valid_registrant = $this->checkout->transaction->primary_registration();
-			if ( ! $valid_registrant instanceof EE_Registration ) {
-				EE_Error::add_error( __( 'We\'re sorry but there appears to be an error with the "reg_url_link" or the primary registrant for this transaction. Please refresh the page and try again or contact support.', 'event_espresso' ), __FILE__, __FUNCTION__, __LINE__ );
+			if ( ! $valid_registrant instanceof EE_Registration) {
+				EE_Error::add_error(__('We\'re sorry but there appears to be an error with the "reg_url_link" or the primary registrant for this transaction. Please refresh the page and try again or contact support.', 'event_espresso'), __FILE__, __FUNCTION__, __LINE__);
 				return false;
 			}
 			$valid_registrant = null;
-			foreach ( $this->checkout->transaction->registrations( $this->checkout->reg_cache_where_params ) as $registration ) {
+			foreach ($this->checkout->transaction->registrations($this->checkout->reg_cache_where_params) as $registration) {
 				if (
 					$registration instanceof EE_Registration
 					&& $registration->reg_url_link() === $this->checkout->reg_url_link
@@ -923,9 +923,9 @@ 
 					$valid_registrant = $registration;
 				}
 			}
-			if ( ! $valid_registrant instanceof EE_Registration ) {
+			if ( ! $valid_registrant instanceof EE_Registration) {
 				// hmmm... maybe we have the wrong session because the user is opening multiple tabs ?
-				if ( EED_Single_Page_Checkout::$_checkout_verified ) {
+				if (EED_Single_Page_Checkout::$_checkout_verified) {
 					// clear the session, mark the checkout as unverified, and try again
 					EE_Registry::instance()->SSN->clear_session();
 					EED_Single_Page_Checkout::$_initialized = false;
@@ -934,13 +934,13 @@ 
 					EE_Error::reset_notices();
 					return false;
 				}
-				EE_Error::add_error( __( 'We\'re sorry but there appears to be an error with the "reg_url_link" or the transaction itself. Please refresh the page and try again or contact support.', 'event_espresso' ), __FILE__, __FUNCTION__, __LINE__ );
+				EE_Error::add_error(__('We\'re sorry but there appears to be an error with the "reg_url_link" or the transaction itself. Please refresh the page and try again or contact support.', 'event_espresso'), __FILE__, __FUNCTION__, __LINE__);
 				return false;
 			}
 		}
 		// now that things have been kinda sufficiently verified,
 		// let's add the checkout to the session so that's available other systems
-		EE_Registry::instance()->SSN->set_checkout( $this->checkout );
+		EE_Registry::instance()->SSN->set_checkout($this->checkout);
 		return true;
 	}
 
@@ -955,28 +955,28 @@ 
 	 * @param bool $reinitializing
 	 * @throws \EE_Error
 	 */
-	private function _initialize_reg_steps( $reinitializing = false ) {
-		$this->checkout->set_reg_step_initiated( $this->checkout->current_step );
+	private function _initialize_reg_steps($reinitializing = false) {
+		$this->checkout->set_reg_step_initiated($this->checkout->current_step);
 		// loop thru all steps to call their individual "initialize" methods and set i18n strings for JS
-		foreach ( $this->checkout->reg_steps as $reg_step ) {
-			if ( ! $reg_step->initialize_reg_step() ) {
+		foreach ($this->checkout->reg_steps as $reg_step) {
+			if ( ! $reg_step->initialize_reg_step()) {
 				// if not initialized then maybe this step is being removed...
-				if ( ! $reinitializing && $reg_step->is_current_step() ) {
+				if ( ! $reinitializing && $reg_step->is_current_step()) {
 					// if it was the current step, then we need to start over here
-					$this->_initialize_reg_steps( true );
+					$this->_initialize_reg_steps(true);
 					return;
 				}
 				continue;
 			}
 			// i18n
 			$reg_step->translate_js_strings();
-			if ( $reg_step->is_current_step() ) {
+			if ($reg_step->is_current_step()) {
 				// the text that appears on the reg step form submit button
 				$reg_step->set_submit_button_text();
 			}
 		}
 		// dynamically creates hook point like: AHEE__Single_Page_Checkout___initialize_reg_step__attendee_information
-		do_action( "AHEE__Single_Page_Checkout___initialize_reg_step__{$this->checkout->current_step->slug()}", $this->checkout->current_step );
+		do_action("AHEE__Single_Page_Checkout___initialize_reg_step__{$this->checkout->current_step->slug()}", $this->checkout->current_step);
 	}
 
 
@@ -989,43 +989,43 @@ 
 	 */
 	private function _check_form_submission() {
 		//does this request require the reg form to be generated ?
-		if ( $this->checkout->generate_reg_form ) {
+		if ($this->checkout->generate_reg_form) {
 			// ever heard that song by Blue Rodeo ?
 			try {
 				$this->checkout->current_step->reg_form = $this->checkout->current_step->generate_reg_form();
 				// if not displaying a form, then check for form submission
-				if ( $this->checkout->process_form_submission && $this->checkout->current_step->reg_form->was_submitted() ) {
+				if ($this->checkout->process_form_submission && $this->checkout->current_step->reg_form->was_submitted()) {
 					// clear out any old data in case this step is being run again
-					$this->checkout->current_step->set_valid_data( array() );
+					$this->checkout->current_step->set_valid_data(array());
 					// capture submitted form data
 					$this->checkout->current_step->reg_form->receive_form_submission(
-						apply_filters( 'FHEE__Single_Page_Checkout___check_form_submission__request_params', EE_Registry::instance()->REQ->params(), $this->checkout )
+						apply_filters('FHEE__Single_Page_Checkout___check_form_submission__request_params', EE_Registry::instance()->REQ->params(), $this->checkout)
 					);
 					// validate submitted form data
-					if ( ! $this->checkout->continue_reg && ! $this->checkout->current_step->reg_form->is_valid() ) {
+					if ( ! $this->checkout->continue_reg && ! $this->checkout->current_step->reg_form->is_valid()) {
 						// thou shall not pass !!!
 						$this->checkout->continue_reg = FALSE;
 						// any form validation errors?
-						if ( $this->checkout->current_step->reg_form->submission_error_message() !== '' ) {
+						if ($this->checkout->current_step->reg_form->submission_error_message() !== '') {
 							$submission_error_messages = array();
 							// bad, bad, bad registrant
-							foreach( $this->checkout->current_step->reg_form->get_validation_errors_accumulated() as $validation_error ){
-								if ( $validation_error instanceof EE_Validation_Error ) {
+							foreach ($this->checkout->current_step->reg_form->get_validation_errors_accumulated() as $validation_error) {
+								if ($validation_error instanceof EE_Validation_Error) {
 									$submission_error_messages[] = sprintf(
-										__( '%s : %s', 'event_espresso' ),
+										__('%s : %s', 'event_espresso'),
 										$validation_error->get_form_section()->html_label_text(),
 										$validation_error->getMessage()
 									);
 								}
 							}
-							EE_Error::add_error( implode( '<br />', $submission_error_messages ), __FILE__, __FUNCTION__, __LINE__ );
+							EE_Error::add_error(implode('<br />', $submission_error_messages), __FILE__, __FUNCTION__, __LINE__);
 						}
 						// well not really... what will happen is we'll just get redirected back to redo the current step
 						$this->go_to_next_step();
 						return;
 					}
 				}
-			} catch( EE_Error $e ) {
+			} catch (EE_Error $e) {
 				$e->get_error();
 			}
 		}
@@ -1042,22 +1042,22 @@ 
 	 */
 	private function _process_form_action() {
 		// what cha wanna do?
-		switch( $this->checkout->action ) {
+		switch ($this->checkout->action) {
 			// AJAX next step reg form
 			case 'display_spco_reg_step' :
 				$this->checkout->redirect = FALSE;
-				if ( EE_Registry::instance()->REQ->ajax ) {
-					$this->checkout->json_response->set_reg_step_html( $this->checkout->current_step->display_reg_form() );
+				if (EE_Registry::instance()->REQ->ajax) {
+					$this->checkout->json_response->set_reg_step_html($this->checkout->current_step->display_reg_form());
 				}
 				break;
 
 			default :
 				// meh... do one of those other steps first
-				if ( ! empty( $this->checkout->action ) && is_callable( array( $this->checkout->current_step, $this->checkout->action ))) {
+				if ( ! empty($this->checkout->action) && is_callable(array($this->checkout->current_step, $this->checkout->action))) {
 					// dynamically creates hook point like: AHEE__Single_Page_Checkout__before_attendee_information__process_reg_step
-					do_action( "AHEE__Single_Page_Checkout__before_{$this->checkout->current_step->slug()}__{$this->checkout->action}", $this->checkout->current_step );
+					do_action("AHEE__Single_Page_Checkout__before_{$this->checkout->current_step->slug()}__{$this->checkout->action}", $this->checkout->current_step);
 					// call action on current step
-					if ( call_user_func( array( $this->checkout->current_step, $this->checkout->action )) ) {
+					if (call_user_func(array($this->checkout->current_step, $this->checkout->action))) {
 						// good registrant, you get to proceed
 						if (
 							$this->checkout->current_step->success_message() !== ''
@@ -1068,7 +1068,7 @@ 
 						) {
 								EE_Error::add_success(
 									$this->checkout->current_step->success_message()
-									. '<br />' . $this->checkout->next_step->_instructions()
+									. '<br />'.$this->checkout->next_step->_instructions()
 								);
 
 						}
@@ -1076,12 +1076,12 @@ 
 						$this->_setup_redirect();
 					}
 					// dynamically creates hook point like: AHEE__Single_Page_Checkout__after_payment_options__process_reg_step
-					do_action( "AHEE__Single_Page_Checkout__after_{$this->checkout->current_step->slug()}__{$this->checkout->action}", $this->checkout->current_step );
+					do_action("AHEE__Single_Page_Checkout__after_{$this->checkout->current_step->slug()}__{$this->checkout->action}", $this->checkout->current_step);
 
 				} else {
 					EE_Error::add_error(
 						sprintf(
-							__( 'The requested form action "%s" does not exist for the current "%s" registration step.', 'event_espresso' ),
+							__('The requested form action "%s" does not exist for the current "%s" registration step.', 'event_espresso'),
 							$this->checkout->action,
 							$this->checkout->current_step->name()
 						),
@@ -1107,10 +1107,10 @@ 
 	public function add_styles_and_scripts() {
 		// i18n
 		$this->translate_js_strings();
-		if ( $this->checkout->admin_request ) {
-			add_action('admin_enqueue_scripts', array($this, 'enqueue_styles_and_scripts'), 10 );
+		if ($this->checkout->admin_request) {
+			add_action('admin_enqueue_scripts', array($this, 'enqueue_styles_and_scripts'), 10);
 		} else {
-			add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_styles_and_scripts' ), 10 );
+			add_action('wp_enqueue_scripts', array($this, 'enqueue_styles_and_scripts'), 10);
 		}
 	}
 
@@ -1126,42 +1126,42 @@ 
 		EE_Registry::$i18n_js_strings['revisit'] = $this->checkout->revisit;
 		EE_Registry::$i18n_js_strings['e_reg_url_link'] = $this->checkout->reg_url_link;
 		EE_Registry::$i18n_js_strings['server_error'] = __('An unknown error occurred on the server while attempting to process your request. Please refresh the page and try again or contact support.', 'event_espresso');
-		EE_Registry::$i18n_js_strings['invalid_json_response'] = __( 'An invalid response was returned from the server while attempting to process your request. Please refresh the page and try again or contact support.', 'event_espresso' );
-		EE_Registry::$i18n_js_strings['validation_error'] = __( 'There appears to be a problem with the form validation configuration! Please check the admin settings or contact support.', 'event_espresso' );
-		EE_Registry::$i18n_js_strings['invalid_payment_method'] = __( 'There appears to be a problem with the payment method configuration! Please refresh the page and try again or contact support.', 'event_espresso' );
+		EE_Registry::$i18n_js_strings['invalid_json_response'] = __('An invalid response was returned from the server while attempting to process your request. Please refresh the page and try again or contact support.', 'event_espresso');
+		EE_Registry::$i18n_js_strings['validation_error'] = __('There appears to be a problem with the form validation configuration! Please check the admin settings or contact support.', 'event_espresso');
+		EE_Registry::$i18n_js_strings['invalid_payment_method'] = __('There appears to be a problem with the payment method configuration! Please refresh the page and try again or contact support.', 'event_espresso');
 		EE_Registry::$i18n_js_strings['reg_step_error'] = __('This registration step could not be completed. Please refresh the page and try again.', 'event_espresso');
 		EE_Registry::$i18n_js_strings['invalid_coupon'] = __('We\'re sorry but that coupon code does not appear to be valid. If this is incorrect, please contact the site administrator.', 'event_espresso');
-		EE_Registry::$i18n_js_strings['process_registration'] = sprintf( __( 'Please wait while we process your registration.%sDo not refresh the page or navigate away while this is happening.%sThank you for your patience.', 'event_espresso' ), '<br/>', '<br/>' );
-		EE_Registry::$i18n_js_strings['language'] = get_bloginfo( 'language' );
+		EE_Registry::$i18n_js_strings['process_registration'] = sprintf(__('Please wait while we process your registration.%sDo not refresh the page or navigate away while this is happening.%sThank you for your patience.', 'event_espresso'), '<br/>', '<br/>');
+		EE_Registry::$i18n_js_strings['language'] = get_bloginfo('language');
 		EE_Registry::$i18n_js_strings['EESID'] = EE_Registry::instance()->SSN->id();
 		EE_Registry::$i18n_js_strings['currency'] = EE_Registry::instance()->CFG->currency;
 		EE_Registry::$i18n_js_strings['datepicker_yearRange'] = '-150:+20';
-		EE_Registry::$i18n_js_strings['timer_years'] = __( 'years', 'event_espresso' );
-		EE_Registry::$i18n_js_strings['timer_months'] = __( 'months', 'event_espresso' );
-		EE_Registry::$i18n_js_strings['timer_weeks'] = __( 'weeks', 'event_espresso' );
-		EE_Registry::$i18n_js_strings['timer_days'] = __( 'days', 'event_espresso' );
-		EE_Registry::$i18n_js_strings['timer_hours'] = __( 'hours', 'event_espresso' );
-		EE_Registry::$i18n_js_strings['timer_minutes'] = __( 'minutes', 'event_espresso' );
-		EE_Registry::$i18n_js_strings['timer_seconds'] = __( 'seconds', 'event_espresso' );
-		EE_Registry::$i18n_js_strings['timer_year'] = __( 'year', 'event_espresso' );
-		EE_Registry::$i18n_js_strings['timer_month'] = __( 'month', 'event_espresso' );
-		EE_Registry::$i18n_js_strings['timer_week'] = __( 'week', 'event_espresso' );
-		EE_Registry::$i18n_js_strings['timer_day'] = __( 'day', 'event_espresso' );
-		EE_Registry::$i18n_js_strings['timer_hour'] = __( 'hour', 'event_espresso' );
-		EE_Registry::$i18n_js_strings['timer_minute'] = __( 'minute', 'event_espresso' );
-		EE_Registry::$i18n_js_strings['timer_second'] = __( 'second', 'event_espresso' );
+		EE_Registry::$i18n_js_strings['timer_years'] = __('years', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_months'] = __('months', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_weeks'] = __('weeks', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_days'] = __('days', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_hours'] = __('hours', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_minutes'] = __('minutes', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_seconds'] = __('seconds', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_year'] = __('year', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_month'] = __('month', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_week'] = __('week', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_day'] = __('day', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_hour'] = __('hour', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_minute'] = __('minute', 'event_espresso');
+		EE_Registry::$i18n_js_strings['timer_second'] = __('second', 'event_espresso');
 		EE_Registry::$i18n_js_strings['registration_expiration_notice'] = sprintf(
-			__( '%1$sWe\'re sorry, but your registration time has expired.%2$s%3$s%4$sIf you still wish to complete your registration, please return to the %5$sEvent List%6$sEvent List%7$s and reselect your tickets if available. Please except our apologies for any inconvenience this may have caused.%8$s', 'event_espresso' ),
+			__('%1$sWe\'re sorry, but your registration time has expired.%2$s%3$s%4$sIf you still wish to complete your registration, please return to the %5$sEvent List%6$sEvent List%7$s and reselect your tickets if available. Please except our apologies for any inconvenience this may have caused.%8$s', 'event_espresso'),
 			'<h4 class="important-notice">',
 			'</h4>',
 			'<br />',
 			'<p>',
-			'<a href="'. get_post_type_archive_link( 'espresso_events' ) . '" title="',
+			'<a href="'.get_post_type_archive_link('espresso_events').'" title="',
 			'">',
 			'</a>',
 			'</p>'
 		);
-		EE_Registry::$i18n_js_strings[ 'ajax_submit' ] = apply_filters( 'FHEE__Single_Page_Checkout__translate_js_strings__ajax_submit', true );
+		EE_Registry::$i18n_js_strings['ajax_submit'] = apply_filters('FHEE__Single_Page_Checkout__translate_js_strings__ajax_submit', true);
 	}
 
 
@@ -1174,25 +1174,25 @@ 
 	 */
 	public function enqueue_styles_and_scripts() {
 		// load css
-		wp_register_style( 'single_page_checkout', SPCO_CSS_URL . 'single_page_checkout.css', array(), EVENT_ESPRESSO_VERSION );
-		wp_enqueue_style( 'single_page_checkout' );
+		wp_register_style('single_page_checkout', SPCO_CSS_URL.'single_page_checkout.css', array(), EVENT_ESPRESSO_VERSION);
+		wp_enqueue_style('single_page_checkout');
 		// load JS
-		wp_register_script( 'jquery_plugin', EE_THIRD_PARTY_URL . 'jquery	.plugin.min.js', array( 'jquery' ), '1.0.1', TRUE );
-		wp_register_script( 'jquery_countdown', EE_THIRD_PARTY_URL . 'jquery	.countdown.min.js', array( 'jquery_plugin' ), '2.0.2', TRUE );
-		wp_register_script( 'single_page_checkout', SPCO_JS_URL . 'single_page_checkout.js', array( 'espresso_core', 'underscore', 'ee_form_section_validation', 'jquery_countdown' ), EVENT_ESPRESSO_VERSION, TRUE );
-		wp_enqueue_script( 'single_page_checkout' );
+		wp_register_script('jquery_plugin', EE_THIRD_PARTY_URL.'jquery	.plugin.min.js', array('jquery'), '1.0.1', TRUE);
+		wp_register_script('jquery_countdown', EE_THIRD_PARTY_URL.'jquery	.countdown.min.js', array('jquery_plugin'), '2.0.2', TRUE);
+		wp_register_script('single_page_checkout', SPCO_JS_URL.'single_page_checkout.js', array('espresso_core', 'underscore', 'ee_form_section_validation', 'jquery_countdown'), EVENT_ESPRESSO_VERSION, TRUE);
+		wp_enqueue_script('single_page_checkout');
 
 		/**
 		 * global action hook for enqueueing styles and scripts with
 		 * spco calls.
 		 */
-		do_action( 'AHEE__EED_Single_Page_Checkout__enqueue_styles_and_scripts', $this );
+		do_action('AHEE__EED_Single_Page_Checkout__enqueue_styles_and_scripts', $this);
 
 		/**
 		 * dynamic action hook for enqueueing styles and scripts with spco calls.
 		 * The hook will end up being something like AHEE__EED_Single_Page_Checkout__enqueue_styles_and_scripts__attendee_information
 		 */
-		do_action( 'AHEE__EED_Single_Page_Checkout__enqueue_styles_and_scripts__' . $this->checkout->current_step->slug(), $this );
+		do_action('AHEE__EED_Single_Page_Checkout__enqueue_styles_and_scripts__'.$this->checkout->current_step->slug(), $this);
 
 		// add css and JS for current step
 		$this->checkout->current_step->enqueue_styles_and_scripts();
@@ -1209,19 +1209,19 @@ 
 	 */
 	private function _display_spco_reg_form() {
 		// if registering via the admin, just display the reg form for the current step
-		if ( $this->checkout->admin_request ) {
-			EE_Registry::instance()->REQ->add_output( $this->checkout->current_step->display_reg_form() );
+		if ($this->checkout->admin_request) {
+			EE_Registry::instance()->REQ->add_output($this->checkout->current_step->display_reg_form());
 		} else {
 			// add powered by EE msg
-			add_action( 'AHEE__SPCO__reg_form_footer', array( 'EED_Single_Page_Checkout', 'display_registration_footer' ));
+			add_action('AHEE__SPCO__reg_form_footer', array('EED_Single_Page_Checkout', 'display_registration_footer'));
 
-			$empty_cart = count( $this->checkout->transaction->registrations( $this->checkout->reg_cache_where_params ) ) < 1 ? true : false;
+			$empty_cart = count($this->checkout->transaction->registrations($this->checkout->reg_cache_where_params)) < 1 ? true : false;
 			$cookies_not_set_msg = '';
-			if ( $empty_cart && ! isset( $_COOKIE[ 'ee_cookie_test' ] ) ) {
+			if ($empty_cart && ! isset($_COOKIE['ee_cookie_test'])) {
 				$cookies_not_set_msg = apply_filters(
 					'FHEE__Single_Page_Checkout__display_spco_reg_form__cookies_not_set_msg',
 					sprintf(
-						__( '%1$s%3$sIt appears your browser is not currently set to accept Cookies%4$s%5$sIn order to register for events, you need to enable cookies.%7$sIf you require assistance, then click the following link to learn how to %8$senable cookies%9$s%6$s%2$s', 'event_espresso' ),
+						__('%1$s%3$sIt appears your browser is not currently set to accept Cookies%4$s%5$sIn order to register for events, you need to enable cookies.%7$sIf you require assistance, then click the following link to learn how to %8$senable cookies%9$s%6$s%2$s', 'event_espresso'),
 						'<div class="ee-attention">',
 						'</div>',
 						'<h6 class="important-notice">',
@@ -1241,7 +1241,7 @@ 
 					'layout_strategy' =>
 						new EE_Template_Layout(
 							array(
-								'layout_template_file' 			=> SPCO_TEMPLATES_PATH . 'registration_page_wrapper.template.php',
+								'layout_template_file' 			=> SPCO_TEMPLATES_PATH.'registration_page_wrapper.template.php',
 								'template_args' => array(
 									'empty_cart' 		=> $empty_cart,
 									'revisit' 				=> $this->checkout->revisit,
@@ -1250,8 +1250,8 @@ 
 									'empty_msg' 		=> apply_filters(
 										'FHEE__Single_Page_Checkout__display_spco_reg_form__empty_msg',
 										sprintf(
-											__( 'You need to %1$sReturn to Events list%2$sselect at least one event%3$s before you can proceed with the registration process.', 'event_espresso' ),
-											'<a href="' . get_post_type_archive_link( 'espresso_events' ) . '" title="',
+											__('You need to %1$sReturn to Events list%2$sselect at least one event%3$s before you can proceed with the registration process.', 'event_espresso'),
+											'<a href="'.get_post_type_archive_link('espresso_events').'" title="',
 											'">',
 											'</a>'
 										)
@@ -1259,14 +1259,14 @@ 
 									'cookies_not_set_msg' 		=> $cookies_not_set_msg,
 									'registration_time_limit' 	=> $this->checkout->get_registration_time_limit(),
 									'session_expiration' 			=>
-										gmdate( 'M d, Y H:i:s', EE_Registry::instance()->SSN->expiration() + ( get_option( 'gmt_offset' ) * HOUR_IN_SECONDS ) )
+										gmdate('M d, Y H:i:s', EE_Registry::instance()->SSN->expiration() + (get_option('gmt_offset') * HOUR_IN_SECONDS))
 							)
 						)
 					)
 				)
 			);
 			// load template and add to output sent that gets filtered into the_content()
-			EE_Registry::instance()->REQ->add_output( $this->checkout->registration_form->get_html_and_js() );
+			EE_Registry::instance()->REQ->add_output($this->checkout->registration_form->get_html_and_js());
 		}
 	}
 
@@ -1280,8 +1280,8 @@ 
 	 * @internal  param string $label
 	 * @return        string
 	 */
-	public function add_extra_finalize_registration_inputs( $next_step ) {
-		if ( $next_step === 'finalize_registration' ) {
+	public function add_extra_finalize_registration_inputs($next_step) {
+		if ($next_step === 'finalize_registration') {
 			echo '<div id="spco-extra-finalize_registration-inputs-dv"></div>';
 		}
 	}
@@ -1295,18 +1295,18 @@ 
 	 *  @return 	string
 	 */
 	public static function display_registration_footer() {
-		if ( apply_filters( 'FHEE__EE_Front__Controller__show_reg_footer', EE_Registry::instance()->CFG->admin->show_reg_footer ) ) {
-			EE_Registry::instance()->CFG->admin->affiliate_id = ! empty( EE_Registry::instance()->CFG->admin->affiliate_id ) ? EE_Registry::instance()->CFG->admin->affiliate_id : 'default';
-			$url = add_query_arg( array( 'ap_id' => EE_Registry::instance()->CFG->admin->affiliate_id ), 'https://eventespresso.com/' );
-			$url = apply_filters( 'FHEE__EE_Front_Controller__registration_footer__url', $url );
+		if (apply_filters('FHEE__EE_Front__Controller__show_reg_footer', EE_Registry::instance()->CFG->admin->show_reg_footer)) {
+			EE_Registry::instance()->CFG->admin->affiliate_id = ! empty(EE_Registry::instance()->CFG->admin->affiliate_id) ? EE_Registry::instance()->CFG->admin->affiliate_id : 'default';
+			$url = add_query_arg(array('ap_id' => EE_Registry::instance()->CFG->admin->affiliate_id), 'https://eventespresso.com/');
+			$url = apply_filters('FHEE__EE_Front_Controller__registration_footer__url', $url);
 			echo apply_filters(
 				'FHEE__EE_Front_Controller__display_registration_footer',
 				sprintf(
-					__( '%1$sEvent Registration Powered by Event Espresso%2$sEvent Registration and Ticketing%3$s Powered by %4$sEvent Espresso - Event Registration and Management System for WordPress%5$sEvent Espresso%6$s', 'event_espresso' ),
-					'<div id="espresso-registration-footer-dv"><a href="' . $url . '" title="',
+					__('%1$sEvent Registration Powered by Event Espresso%2$sEvent Registration and Ticketing%3$s Powered by %4$sEvent Espresso - Event Registration and Management System for WordPress%5$sEvent Espresso%6$s', 'event_espresso'),
+					'<div id="espresso-registration-footer-dv"><a href="'.$url.'" title="',
 					'" target="_blank">',
 					'</a>',
-					'<a href="' . $url . '" title="',
+					'<a href="'.$url.'" title="',
 					'" target="_blank">',
 					'</a></div>'
 				)
@@ -1337,12 +1337,12 @@ 
 	 * @return 	array
 	 */
 	private function _setup_redirect() {
-		if ( $this->checkout->continue_reg && $this->checkout->next_step instanceof EE_SPCO_Reg_Step ) {
+		if ($this->checkout->continue_reg && $this->checkout->next_step instanceof EE_SPCO_Reg_Step) {
 			$this->checkout->redirect = TRUE;
-			if ( empty( $this->checkout->redirect_url )) {
+			if (empty($this->checkout->redirect_url)) {
 				$this->checkout->redirect_url = $this->checkout->next_step->reg_step_url();
 			}
-			$this->checkout->redirect_url = apply_filters( 'FHEE__EED_Single_Page_Checkout___setup_redirect__checkout_redirect_url', $this->checkout->redirect_url, $this->checkout );
+			$this->checkout->redirect_url = apply_filters('FHEE__EED_Single_Page_Checkout___setup_redirect__checkout_redirect_url', $this->checkout->redirect_url, $this->checkout);
 		}
 	}
 
@@ -1356,9 +1356,9 @@ 
 	 * @throws \EE_Error
 	 */
 	public function go_to_next_step() {
-		if ( EE_Registry::instance()->REQ->ajax ) {
+		if (EE_Registry::instance()->REQ->ajax) {
 			// capture contents of output buffer we started earlier in the request, and insert into JSON response
-			$this->checkout->json_response->set_unexpected_errors( ob_get_clean() );
+			$this->checkout->json_response->set_unexpected_errors(ob_get_clean());
 		}
 		$this->unlock_transaction();
 		// just return for these conditions
@@ -1387,7 +1387,7 @@ 
 	 */
 	protected function _handle_json_response() {
 		// if this is an ajax request
-		if ( EE_Registry::instance()->REQ->ajax ) {
+		if (EE_Registry::instance()->REQ->ajax) {
 			// DEBUG LOG
 			//$this->checkout->log(
 			//	__CLASS__, __FUNCTION__, __LINE__,
@@ -1400,7 +1400,7 @@ 
 			$this->checkout->json_response->set_registration_time_limit(
 				$this->checkout->get_registration_time_limit()
 			);
-			$this->checkout->json_response->set_payment_amount( $this->checkout->amount_owing );
+			$this->checkout->json_response->set_payment_amount($this->checkout->amount_owing);
 			// just send the ajax (
 			$json_response = apply_filters(
 				'FHEE__EE_Single_Page_Checkout__JSON_response',
@@ -1421,9 +1421,9 @@ 
 	 */
 	protected function _handle_html_redirects() {
 		// going somewhere ?
-		if ( $this->checkout->redirect && ! empty( $this->checkout->redirect_url ) ) {
+		if ($this->checkout->redirect && ! empty($this->checkout->redirect_url)) {
 			// store notices in a transient
-			EE_Error::get_notices( false, true, true );
+			EE_Error::get_notices(false, true, true);
 			// DEBUG LOG
 			//$this->checkout->log(
 			//	__CLASS__, __FUNCTION__, __LINE__,
@@ -1433,7 +1433,7 @@ 
 			//		'headers_list'    => headers_list(),
 			//	)
 			//);
-			wp_safe_redirect( $this->checkout->redirect_url );
+			wp_safe_redirect($this->checkout->redirect_url);
 			exit();
 		}
 	}