diff --git a/includes/admin/class-wc-admin-setup-wizard.php b/includes/admin/class-wc-admin-setup-wizard.php
index 18912286352..4b1a2798049 100644
--- a/includes/admin/class-wc-admin-setup-wizard.php
+++ b/includes/admin/class-wc-admin-setup-wizard.php
@@ -190,8 +190,8 @@ class WC_Admin_Setup_Wizard {
 				'i18n'                    => array(
 					'extra_plugins' => array(
 						'payment' => array(
-							'stripe_create_account'                              => __( 'Stripe setup is powered by Jetpack and WooCommerce Services.', 'woocommerce' ),
-							'ppec_paypal_reroute_requests'                       => __( 'PayPal setup is powered by Jetpack and WooCommerce Services.', 'woocommerce' ),
+							'stripe_create_account'        => __( 'Stripe setup is powered by Jetpack and WooCommerce Services.', 'woocommerce' ),
+							'ppec_paypal_reroute_requests' => __( 'PayPal setup is powered by Jetpack and WooCommerce Services.', 'woocommerce' ),
 							'stripe_create_account,ppec_paypal_reroute_requests' => __( 'Stripe and PayPal setup are powered by Jetpack and WooCommerce Services.', 'woocommerce' ),
 						),
 					),
@@ -536,22 +536,16 @@ class WC_Admin_Setup_Wizard {
 	public function wc_setup_store_setup_save() {
 		check_admin_referer( 'wc-setup' );
 
-		// phpcs:disable WordPress.VIP.SuperGlobalInputUsage.AccessDetected, WordPress.VIP.ValidatedSanitizedInput.InputNotValidated, WordPress.VIP.ValidatedSanitizedInput.MissingUnslash
-		$address        = sanitize_text_field( $_POST['store_address'] );
-		$address_2      = sanitize_text_field( $_POST['store_address_2'] );
-		$city           = sanitize_text_field( $_POST['store_city'] );
-		$country        = sanitize_text_field( $_POST['store_country'] );
-		$state          = isset( $_POST['store_state'] ) ? sanitize_text_field( $_POST['store_state'] ) : false;
-		$postcode       = sanitize_text_field( $_POST['store_postcode'] );
-		$currency_code  = sanitize_text_field( $_POST['currency_code'] );
-		$product_type   = sanitize_text_field( $_POST['product_type'] );
-		$sell_in_person = isset( $_POST['sell_in_person'] ) && ( 'yes' === sanitize_text_field( $_POST['sell_in_person'] ) );
-		$tracking       = isset( $_POST['wc_tracker_checkbox'] ) && ( 'yes' === sanitize_text_field( $_POST['wc_tracker_checkbox'] ) );
-		// phpcs:enable
-
-		if ( ! $state ) {
-			$state = '*';
-		}
+		$address        = isset( $_POST['store_address'] ) ? wc_clean( wp_unslash( $_POST['store_address'] ) ) : '';
+		$address_2      = isset( $_POST['store_address_2'] ) ? wc_clean( wp_unslash( $_POST['store_address_2'] ) ) : '';
+		$city           = isset( $_POST['store_city'] ) ? wc_clean( wp_unslash( $_POST['store_city'] ) ) : '';
+		$country        = isset( $_POST['store_country'] ) ? wc_clean( wp_unslash( $_POST['store_country'] ) ) : '';
+		$state          = isset( $_POST['store_state'] ) ? wc_clean( wp_unslash( $_POST['store_state'] ) ) : '*';
+		$postcode       = isset( $_POST['store_postcode'] ) ? wc_clean( wp_unslash( $_POST['store_postcode'] ) ) : '';
+		$currency_code  = isset( $_POST['currency_code'] ) ? wc_clean( wp_unslash( $_POST['currency_code'] ) ) : '';
+		$product_type   = isset( $_POST['product_type'] ) ? wc_clean( wp_unslash( $_POST['product_type'] ) ) : '';
+		$sell_in_person = isset( $_POST['sell_in_person'] ) && ( 'yes' === wc_clean( wp_unslash( $_POST['sell_in_person'] ) ) );
+		$tracking       = isset( $_POST['wc_tracker_checkbox'] ) && ( 'yes' === wc_clean( wp_unslash( $_POST['wc_tracker_checkbox'] ) ) );
 
 		update_option( 'woocommerce_store_address', $address );
 		update_option( 'woocommerce_store_address_2', $address_2 );
@@ -790,8 +784,8 @@ class WC_Admin_Setup_Wizard {
 	 * @param string $input_prefix Input prefix.
 	 */
 	protected function shipping_method_selection_form( $country_code, $currency_code, $input_prefix ) {
-		$selected          = 'flat_rate';
-		$shipping_methods  = $this->get_wizard_shipping_methods( $country_code, $currency_code );
+		$selected         = 'flat_rate';
+		$shipping_methods = $this->get_wizard_shipping_methods( $country_code, $currency_code );
 		?>
 		<div class="wc-wizard-shipping-method-select">
 			<div class="wc-wizard-shipping-method-dropdown">
@@ -966,7 +960,7 @@ class WC_Admin_Setup_Wizard {
 										'class'    => array(),
 										'data-tip' => array(),
 									),
-									'a' => array(
+									'a'    => array(
 										'href'   => array(),
 										'target' => array(),
 									),
@@ -985,28 +979,32 @@ class WC_Admin_Setup_Wizard {
 			<ul class="wc-setup-shipping-recommended">
 			<?php
 			if ( $is_wcs_labels_supported ) :
-				$this->display_recommended_item( array(
-					'type'        => 'woocommerce_services',
-					'title'       => __( 'Print shipping labels at home', 'woocommerce' ),
-					'description' => __( 'We recommend WooCommerce Services & Jetpack. These plugins will save you time at the Post Office by enabling you to print your shipping labels at home.', 'woocommerce' ),
-					'img_url'     => WC()->plugin_url() . '/assets/images/obw-woocommerce-services-icon.png',
-					'img_alt'     => __( 'WooCommerce Services icon', 'woocommerce' ),
-					'plugins'     => $this->get_wcs_requisite_plugins(),
-				) );
+				$this->display_recommended_item(
+					array(
+						'type'        => 'woocommerce_services',
+						'title'       => __( 'Print shipping labels at home', 'woocommerce' ),
+						'description' => __( 'We recommend WooCommerce Services & Jetpack. These plugins will save you time at the Post Office by enabling you to print your shipping labels at home.', 'woocommerce' ),
+						'img_url'     => WC()->plugin_url() . '/assets/images/obw-woocommerce-services-icon.png',
+						'img_alt'     => __( 'WooCommerce Services icon', 'woocommerce' ),
+						'plugins'     => $this->get_wcs_requisite_plugins(),
+					)
+				);
 			elseif ( $is_shipstation_supported ) :
-				$this->display_recommended_item( array(
-					'type'        => 'shipstation',
-					'title'       => __( 'Print shipping labels at home', 'woocommerce' ),
-					'description' => __( 'We recommend using ShipStation to save time at the Post Office by printing your shipping labels at home. Try ShipStation free for 30 days.', 'woocommerce' ),
-					'img_url'     => WC()->plugin_url() . '/assets/images/obw-shipstation-icon.png',
-					'img_alt'     => __( 'ShipStation icon', 'woocommerce' ),
-					'plugins'     => array(
-						array(
-							'name' => __( 'ShipStation', 'woocommerce' ),
-							'slug' => 'woocommerce-shipstation-integration',
+				$this->display_recommended_item(
+					array(
+						'type'        => 'shipstation',
+						'title'       => __( 'Print shipping labels at home', 'woocommerce' ),
+						'description' => __( 'We recommend using ShipStation to save time at the Post Office by printing your shipping labels at home. Try ShipStation free for 30 days.', 'woocommerce' ),
+						'img_url'     => WC()->plugin_url() . '/assets/images/obw-shipstation-icon.png',
+						'img_alt'     => __( 'ShipStation icon', 'woocommerce' ),
+						'plugins'     => array(
+							array(
+								'name' => __( 'ShipStation', 'woocommerce' ),
+								'slug' => 'woocommerce-shipstation-integration',
+							),
 						),
-					),
-				) );
+					)
+				);
 			endif;
 		endif;
 		?>
@@ -1023,7 +1021,7 @@ class WC_Admin_Setup_Wizard {
 								$this->get_product_dimension_selection()
 							),
 							array(
-								'span' => array(
+								'span'   => array(
 									'class' => array(),
 								),
 								'select' => array(
@@ -1873,7 +1871,7 @@ class WC_Admin_Setup_Wizard {
 					&& $this->should_show_automated_tax()
 					&& $this->should_show_mailchimp()
 					) :
-				esc_html_e( 'Select from the list below to enable automated taxes and MailChimp’s best-in-class email services — and design your store with our official, free WooCommerce theme.', 'woocommerce' );
+			esc_html_e( 'Select from the list below to enable automated taxes and MailChimp’s best-in-class email services — and design your store with our official, free WooCommerce theme.', 'woocommerce' );
 			else :
 				esc_html_e( 'Enhance your store with these recommended features.', 'woocommerce' );
 			endif;
diff --git a/includes/admin/class-wc-admin.php b/includes/admin/class-wc-admin.php
index c7e902a0b51..77c5d420753 100644
--- a/includes/admin/class-wc-admin.php
+++ b/includes/admin/class-wc-admin.php
@@ -3,14 +3,12 @@
  * WooCommerce Admin
  *
  * @class    WC_Admin
- * @author   WooThemes
- * @category Admin
  * @package  WooCommerce/Admin
  * @version  2.6.0
  */
 
 if ( ! defined( 'ABSPATH' ) ) {
-	exit; // Exit if accessed directly
+	exit; // Exit if accessed directly.
 }
 
 /**
@@ -66,12 +64,12 @@ class WC_Admin {
 		include_once WC_ABSPATH . 'includes/tracks/class-wc-tracks-footer-pixel.php';
 		include_once WC_ABSPATH . 'includes/tracks/class-wc-site-tracking.php';
 
-		// Help Tabs
+		// Help Tabs.
 		if ( apply_filters( 'woocommerce_enable_admin_help_tab', true ) ) {
 			include_once dirname( __FILE__ ) . '/class-wc-admin-help.php';
 		}
 
-		// Setup/welcome
+		// Setup/welcome.
 		if ( ! empty( $_GET['page'] ) ) {
 			switch ( $_GET['page'] ) {
 				case 'wc-setup':
@@ -80,12 +78,12 @@ class WC_Admin {
 			}
 		}
 
-		// Importers
+		// Importers.
 		if ( defined( 'WP_LOAD_IMPORTERS' ) ) {
 			include_once dirname( __FILE__ ) . '/class-wc-admin-importers.php';
 		}
 
-		// Helper
+		// Helper.
 		include_once dirname( __FILE__ ) . '/helper/class-wc-helper-options.php';
 		include_once dirname( __FILE__ ) . '/helper/class-wc-helper-api.php';
 		include_once dirname( __FILE__ ) . '/helper/class-wc-helper-updater.php';
@@ -95,7 +93,7 @@ class WC_Admin {
 	}
 
 	/**
-	 * Preloads some functionality of the Helper to be loaded on the `plugins_loaded` hook
+	 * Preloads some functionality of the Helper to be loaded on the `plugins_loaded` hook.
 	 */
 	public function preload_helper() {
 		include_once dirname( __FILE__ ) . '/helper/class-wc-helper-file-headers.php';
@@ -105,7 +103,9 @@ class WC_Admin {
 	 * Include admin files conditionally.
 	 */
 	public function conditional_includes() {
-		if ( ! $screen = get_current_screen() ) {
+		$screen = get_current_screen();
+
+		if ( ! $screen ) {
 			return;
 		}
 
@@ -138,9 +138,9 @@ class WC_Admin {
 	 * For setup wizard, transient must be present, the user must have access rights, and we must ignore the network/bulk plugin updaters.
 	 */
 	public function admin_redirects() {
-		// Nonced plugin install redirects (whitelisted)
+		// Nonced plugin install redirects (whitelisted).
 		if ( ! empty( $_GET['wc-install-plugin-redirect'] ) ) {
-			$plugin_slug = wc_clean( $_GET['wc-install-plugin-redirect'] );
+			$plugin_slug = wc_clean( wp_unslash( $_GET['wc-install-plugin-redirect'] ) );
 
 			if ( current_user_can( 'install_plugins' ) && in_array( $plugin_slug, array( 'woocommerce-gateway-stripe' ) ) ) {
 				$nonce = wp_create_nonce( 'install-plugin_' . $plugin_slug );
@@ -153,15 +153,19 @@ class WC_Admin {
 			exit;
 		}
 
-		// Setup wizard redirect
+		// Setup wizard redirect.
 		if ( get_transient( '_wc_activation_redirect' ) ) {
 			delete_transient( '_wc_activation_redirect' );
 
-			if ( ( ! empty( $_GET['page'] ) && in_array( $_GET['page'], array( 'wc-setup' ) ) ) || is_network_admin() || isset( $_GET['activate-multi'] ) || ! current_user_can( 'manage_woocommerce' ) || apply_filters( 'woocommerce_prevent_automatic_wizard_redirect', false ) ) {
+			if ( ( ! empty( $_GET['page'] ) &&
+					in_array( wp_unslash( $_GET['page'] ), array( 'wc-setup' ) ) ) ||
+					is_network_admin() || isset( $_GET['activate-multi'] ) ||
+					! current_user_can( 'manage_woocommerce' ) ||
+					apply_filters( 'woocommerce_prevent_automatic_wizard_redirect', false ) ) {
 				return;
 			}
 
-			// If the user needs to install, send them to the setup wizard
+			// If the user needs to install, send them to the setup wizard.
 			if ( WC_Admin_Notices::has_notice( 'install' ) ) {
 				wp_safe_redirect( admin_url( 'index.php?page=wc-setup' ) );
 				exit;
@@ -175,7 +179,7 @@ class WC_Admin {
 	public function prevent_admin_access() {
 		$prevent_access = false;
 
-		if ( apply_filters( 'woocommerce_disable_admin_bar', true ) && ! is_ajax() && basename( $_SERVER["SCRIPT_FILENAME"] ) !== 'admin-post.php' ) {
+		if ( apply_filters( 'woocommerce_disable_admin_bar', true ) && ! is_ajax() && isset( $_SERVER['SCRIPT_FILENAME'] ) && basename( sanitize_text_field( wp_unslash( $_SERVER['SCRIPT_FILENAME'] ) ) ) !== 'admin-post.php' ) {
 			$has_cap     = false;
 			$access_caps = array( 'edit_posts', 'manage_woocommerce', 'view_admin_dashboard' );
 
@@ -203,29 +207,31 @@ class WC_Admin {
 	public function preview_emails() {
 
 		if ( isset( $_GET['preview_woocommerce_mail'] ) ) {
-			if ( ! wp_verify_nonce( $_REQUEST['_wpnonce'], 'preview-mail' ) ) {
+			if ( ! ( isset( $_REQUEST['_wpnonce'] ) && wp_verify_nonce( sanitize_text_field( wp_unslash( $_REQUEST['_wpnonce'], 'preview-mail' ) ) ) ) ) {
 				die( 'Security check' );
 			}
 
-			// load the mailer class
+			// load the mailer class.
 			$mailer = WC()->mailer();
 
-			// get the preview email subject
+			// get the preview email subject.
 			$email_heading = __( 'HTML email template', 'woocommerce' );
 
-			// get the preview email content
+			// get the preview email content.
 			ob_start();
 			include 'views/html-email-template-preview.php';
 			$message = ob_get_clean();
 
-			// create a new email
+			// create a new email.
 			$email = new WC_Email();
 
-			// wrap the content with the email template and then add styles
+			// wrap the content with the email template and then add styles.
 			$message = apply_filters( 'woocommerce_mail_content', $email->style_inline( $mailer->wrap_message( $email_heading, $message ) ) );
 
-			// print the preview email
+			// print the preview email.
+			// phpcs:ignore WordPress.Security.EscapeOutput
 			echo $message;
+			// phpcs:enable
 			exit;
 		}
 	}
@@ -234,7 +240,7 @@ class WC_Admin {
 	 * Change the admin footer text on WooCommerce admin pages.
 	 *
 	 * @since  2.3
-	 * @param  string $footer_text
+	 * @param  string $footer_text text to be rendered in the footer.
 	 * @return string
 	 */
 	public function admin_footer_text( $footer_text ) {
@@ -249,7 +255,7 @@ class WC_Admin {
 
 		// Check to make sure we're on a WooCommerce admin page.
 		if ( isset( $current_screen->id ) && apply_filters( 'woocommerce_display_admin_footer_text', in_array( $current_screen->id, $wc_pages ) ) ) {
-			// Change the footer text
+			// Change the footer text.
 			if ( ! get_option( 'woocommerce_admin_footer_text_rated' ) ) {
 				$footer_text = sprintf(
 					/* translators: 1: WooCommerce 2:: five stars */
diff --git a/includes/admin/helper/class-wc-helper.php b/includes/admin/helper/class-wc-helper.php
index 147ef000b99..8fd040e4f32 100644
--- a/includes/admin/helper/class-wc-helper.php
+++ b/includes/admin/helper/class-wc-helper.php
@@ -1,4 +1,11 @@
 <?php
+/**
+ * WooCommerce Admin
+ *
+ * @class    WC_Helper
+ * @package  WooCommerce/Admin
+ */
+
 if ( ! defined( 'ABSPATH' ) ) {
 	exit;
 }
@@ -11,6 +18,8 @@ if ( ! defined( 'ABSPATH' ) ) {
 class WC_Helper {
 	/**
 	 * A log object returned by wc_get_logger().
+	 *
+	 * @var $log
 	 */
 	public static $log;
 
@@ -33,11 +42,11 @@ class WC_Helper {
 		add_action( 'woocommerce_helper_output', array( __CLASS__, 'render_helper_output' ) );
 		add_action( 'admin_enqueue_scripts', array( __CLASS__, 'admin_enqueue_scripts' ) );
 
-		// Attempt to toggle subscription state upon plugin activation/deactivation
+		// Attempt to toggle subscription state upon plugin activation/deactivation.
 		add_action( 'activated_plugin', array( __CLASS__, 'activated_plugin' ) );
 		add_action( 'deactivated_plugin', array( __CLASS__, 'deactivated_plugin' ) );
 
-		// Add some nags about extension updates
+		// Add some nags about extension updates.
 		add_action( 'admin_notices', array( __CLASS__, 'admin_notices' ) );
 
 		do_action( 'woocommerce_helper_loaded' );
@@ -61,7 +70,8 @@ class WC_Helper {
 					'section'           => 'helper',
 					'wc-helper-connect' => 1,
 					'wc-helper-nonce'   => wp_create_nonce( 'connect' ),
-				), admin_url( 'admin.php' )
+				),
+				admin_url( 'admin.php' )
 			);
 
 			include self::get_view_filename( 'html-oauth-start.php' );
@@ -73,7 +83,8 @@ class WC_Helper {
 				'section'              => 'helper',
 				'wc-helper-disconnect' => 1,
 				'wc-helper-nonce'      => wp_create_nonce( 'disconnect' ),
-			), admin_url( 'admin.php' )
+			),
+			admin_url( 'admin.php' )
 		);
 
 		$current_filter = self::get_current_filter();
@@ -84,7 +95,8 @@ class WC_Helper {
 				'filter'            => $current_filter,
 				'wc-helper-refresh' => 1,
 				'wc-helper-nonce'   => wp_create_nonce( 'refresh' ),
-			), admin_url( 'admin.php' )
+			),
+			admin_url( 'admin.php' )
 		);
 
 		// Installed plugins and themes, with or without an active subscription.
@@ -108,7 +120,8 @@ class WC_Helper {
 					'wc-helper-product-key' => $subscription['product_key'],
 					'wc-helper-product-id'  => $subscription['product_id'],
 					'wc-helper-nonce'       => wp_create_nonce( 'activate:' . $subscription['product_key'] ),
-				), admin_url( 'admin.php' )
+				),
+				admin_url( 'admin.php' )
 			);
 
 			$subscription['deactivate_url'] = add_query_arg(
@@ -120,7 +133,8 @@ class WC_Helper {
 					'wc-helper-product-key' => $subscription['product_key'],
 					'wc-helper-product-id'  => $subscription['product_id'],
 					'wc-helper-nonce'       => wp_create_nonce( 'deactivate:' . $subscription['product_key'] ),
-				), admin_url( 'admin.php' )
+				),
+				admin_url( 'admin.php' )
 			);
 
 			$subscription['local'] = array(
@@ -284,6 +298,7 @@ class WC_Helper {
 
 			if ( $data['_has_update'] ) {
 				$action = array(
+					/* translators: %s: version number */
 					'message'      => sprintf( __( 'Version %s is <strong>available</strong>. To enable this update you need to <strong>purchase</strong> a new subscription.', 'woocommerce' ), esc_html( $updates[ $data['_product_id'] ]['version'] ) ),
 					'button_label' => __( 'Purchase', 'woocommerce' ),
 					'button_url'   => $data['_product_url'],
@@ -314,11 +329,11 @@ class WC_Helper {
 			WC_Helper_Options::update( 'auth', $auth );
 		}
 
-		// Sort alphabetically
+		// Sort alphabetically.
 		uasort( $subscriptions, array( __CLASS__, '_sort_by_product_name' ) );
 		uasort( $no_subscriptions, array( __CLASS__, '_sort_by_name' ) );
 
-		// Filters
+		// Filters.
 		self::get_filters_counts( $subscriptions ); // Warm it up.
 		self::_filter( $subscriptions, self::get_current_filter() );
 
@@ -352,7 +367,7 @@ class WC_Helper {
 	 *
 	 * @param array $subscriptions The array of all available subscriptions.
 	 *
-	 * @return array Filter counts (filter => count)
+	 * @return array Filter counts (filter => count).
 	 */
 	public static function get_filters_counts( $subscriptions = null ) {
 		static $filters;
@@ -384,8 +399,8 @@ class WC_Helper {
 		$current_filter = 'all';
 		$valid_filters  = array_keys( self::get_filters() );
 
-		if ( ! empty( $_GET['filter'] ) && in_array( $_GET['filter'], $valid_filters ) ) {
-			$current_filter = $_GET['filter'];
+		if ( ! empty( $_GET['filter'] ) && in_array( wp_unslash( $_GET['filter'] ), $valid_filters ) ) {
+			$current_filter = wp_unslash( $_GET['filter'] );
 		}
 
 		return $current_filter;
@@ -458,7 +473,7 @@ class WC_Helper {
 	 * @return array Array pairs of message/type strings with notices.
 	 */
 	private static function _get_return_notices() {
-		$return_status = isset( $_GET['wc-helper-status'] ) ? $_GET['wc-helper-status'] : null;
+		$return_status = isset( $_GET['wc-helper-status'] ) ? wp_unslash( $_GET['wc-helper-status'] ) : null;
 		$notices       = array();
 
 		switch ( $return_status ) {
@@ -505,13 +520,15 @@ class WC_Helper {
 							'wc-helper-deactivate-plugin' => 1,
 							'wc-helper-product-id'        => $subscription['product_id'],
 							'wc-helper-nonce'             => wp_create_nonce( 'deactivate-plugin:' . $subscription['product_id'] ),
-						), admin_url( 'admin.php' )
+						),
+						admin_url( 'admin.php' )
 					);
 
 					/* translators: %1$s: product name, %2$s: deactivate url */
 					$message = sprintf(
 						__( 'Subscription for %1$s deactivated successfully. You will no longer receive updates for this product. <a href="%2$s">Click here</a> if you wish to deactivate the plugin as well.', 'woocommerce' ),
-						'<strong>' . esc_html( $subscription['product_name'] ) . '</strong>', esc_url( $deactivate_plugin_url )
+						'<strong>' . esc_html( $subscription['product_name'] ) . '</strong>',
+						esc_url( $deactivate_plugin_url )
 					);
 				}
 
@@ -552,7 +569,8 @@ class WC_Helper {
 					/* translators: %1$s: product name, %2$s: plugins screen url */
 					'message' => sprintf(
 						__( 'An error has occurred when deactivating the extension %1$s. Please proceed to the <a href="%2$s">Plugins screen</a> to deactivate it manually.', 'woocommerce' ),
-						'<strong>' . esc_html( $subscription['product_name'] ) . '</strong>', admin_url( 'plugins.php' )
+						'<strong>' . esc_html( $subscription['product_name'] ) . '</strong>',
+						admin_url( 'plugins.php' )
 					),
 				);
 				break;
@@ -640,11 +658,13 @@ class WC_Helper {
 				'section'          => 'helper',
 				'wc-helper-return' => 1,
 				'wc-helper-nonce'  => wp_create_nonce( 'connect' ),
-			), admin_url( 'admin.php' )
+			),
+			admin_url( 'admin.php' )
 		);
 
 		$request = WC_Helper_API::post(
-			'oauth/request_token', array(
+			'oauth/request_token',
+			array(
 				'body' => array(
 					'home_url'     => home_url(),
 					'redirect_uri' => $redirect_uri,
@@ -675,7 +695,8 @@ class WC_Helper {
 				'home_url'     => rawurlencode( home_url() ),
 				'redirect_uri' => rawurlencode( $redirect_uri ),
 				'secret'       => rawurlencode( $secret ),
-			), WC_Helper_API::url( 'oauth/authorize' )
+			),
+			WC_Helper_API::url( 'oauth/authorize' )
 		);
 
 		wp_redirect( esc_url_raw( $connect_url ) );
@@ -709,7 +730,8 @@ class WC_Helper {
 
 		// Obtain an access token.
 		$request = WC_Helper_API::post(
-			'oauth/access_token', array(
+			'oauth/access_token',
+			array(
 				'body' => array(
 					'request_token' => $_GET['request_token'],
 					'home_url'      => home_url(),
@@ -731,7 +753,8 @@ class WC_Helper {
 		}
 
 		WC_Helper_Options::update(
-			'auth', array(
+			'auth',
+			array(
 				'access_token'        => $access_token['access_token'],
 				'access_token_secret' => $access_token['access_token_secret'],
 				'site_id'             => $access_token['site_id'],
@@ -767,7 +790,8 @@ class WC_Helper {
 					'page'             => 'wc-addons',
 					'section'          => 'helper',
 					'wc-helper-status' => 'helper-connected',
-				), admin_url( 'admin.php' )
+				),
+				admin_url( 'admin.php' )
 			)
 		);
 		die();
@@ -792,11 +816,13 @@ class WC_Helper {
 				'page'             => 'wc-addons',
 				'section'          => 'helper',
 				'wc-helper-status' => 'helper-disconnected',
-			), admin_url( 'admin.php' )
+			),
+			admin_url( 'admin.php' )
 		);
 
 		WC_Helper_API::post(
-			'oauth/invalidate_token', array(
+			'oauth/invalidate_token',
+			array(
 				'authenticated' => true,
 			)
 		);
@@ -834,7 +860,8 @@ class WC_Helper {
 				'section'          => 'helper',
 				'filter'           => self::get_current_filter(),
 				'wc-helper-status' => 'helper-refreshed',
-			), admin_url( 'admin.php' )
+			),
+			admin_url( 'admin.php' )
 		);
 
 		self::_flush_authentication_cache();
@@ -858,7 +885,8 @@ class WC_Helper {
 		}
 
 		$request = WC_Helper_API::post(
-			'activate', array(
+			'activate',
+			array(
 				'authenticated' => true,
 				'body'          => json_encode(
 					array(
@@ -890,7 +918,8 @@ class WC_Helper {
 				'filter'               => self::get_current_filter(),
 				'wc-helper-status'     => $activated ? 'activate-success' : 'activate-error',
 				'wc-helper-product-id' => $product_id,
-			), admin_url( 'admin.php' )
+			),
+			admin_url( 'admin.php' )
 		);
 
 		wp_safe_redirect( $redirect_uri );
@@ -910,7 +939,8 @@ class WC_Helper {
 		}
 
 		$request = WC_Helper_API::post(
-			'deactivate', array(
+			'deactivate',
+			array(
 				'authenticated' => true,
 				'body'          => json_encode(
 					array(
@@ -934,7 +964,8 @@ class WC_Helper {
 				'filter'               => self::get_current_filter(),
 				'wc-helper-status'     => $deactivated ? 'deactivate-success' : 'deactivate-error',
 				'wc-helper-product-id' => $product_id,
-			), admin_url( 'admin.php' )
+			),
+			admin_url( 'admin.php' )
 		);
 
 		wp_safe_redirect( $redirect_uri );
@@ -961,7 +992,8 @@ class WC_Helper {
 			array_merge(
 				self::get_local_woo_plugins(),
 				self::get_local_woo_themes()
-			), array( '_product_id' => $product_id )
+			),
+			array( '_product_id' => $product_id )
 		);
 
 		// Attempt to deactivate this plugin or theme.
@@ -981,7 +1013,8 @@ class WC_Helper {
 				'filter'               => self::get_current_filter(),
 				'wc-helper-status'     => $deactivated ? 'deactivate-plugin-success' : 'deactivate-plugin-error',
 				'wc-helper-product-id' => $product_id,
-			), admin_url( 'admin.php' )
+			),
+			admin_url( 'admin.php' )
 		);
 
 		wp_safe_redirect( $redirect_uri );
@@ -1000,7 +1033,8 @@ class WC_Helper {
 			array_merge(
 				self::get_local_woo_plugins(),
 				self::get_local_woo_themes()
-			), array( '_product_id' => $product_id )
+			),
+			array( '_product_id' => $product_id )
 		);
 
 		if ( ! empty( $local ) ) {
@@ -1138,7 +1172,8 @@ class WC_Helper {
 
 		// Obtain the connected user info.
 		$request = WC_Helper_API::get(
-			'subscriptions', array(
+			'subscriptions',
+			array(
 				'authenticated' => true,
 			)
 		);
@@ -1212,7 +1247,8 @@ class WC_Helper {
 		}
 
 		$request = WC_Helper_API::post(
-			'activate', array(
+			'activate',
+			array(
 				'authenticated' => true,
 				'body'          => json_encode(
 					array(
@@ -1278,7 +1314,8 @@ class WC_Helper {
 			}
 
 			$request = WC_Helper_API::post(
-				'deactivate', array(
+				'deactivate',
+				array(
 					'authenticated' => true,
 					'body'          => json_encode(
 						array(
@@ -1407,7 +1444,8 @@ class WC_Helper {
 		/* translators: %1$s: helper url, %2$d: number of extensions */
 		return sprintf(
 			_n( 'Note: You currently have <a href="%1$s">%2$d paid extension</a> which should be updated first before updating WooCommerce.', 'Note: You currently have <a href="%1$s">%2$d paid extensions</a> which should be updated first before updating WooCommerce.', $available, 'woocommerce' ),
-			admin_url( 'admin.php?page=wc-addons&section=helper' ), $available
+			admin_url( 'admin.php?page=wc-addons&section=helper' ),
+			$available
 		);
 	}
 
@@ -1448,7 +1486,8 @@ class WC_Helper {
 	 */
 	public static function _flush_authentication_cache() {
 		$request = WC_Helper_API::get(
-			'oauth/me', array(
+			'oauth/me',
+			array(
 				'authenticated' => true,
 			)
 		);
@@ -1463,7 +1502,8 @@ class WC_Helper {
 		}
 
 		WC_Helper_Options::update(
-			'auth_user_data', array(
+			'auth_user_data',
+			array(
 				'name'  => $user_data['name'],
 				'email' => $user_data['email'],
 			)
diff --git a/includes/admin/settings/class-wc-settings-accounts.php b/includes/admin/settings/class-wc-settings-accounts.php
index 3c35b68ae98..86f3225470d 100644
--- a/includes/admin/settings/class-wc-settings-accounts.php
+++ b/includes/admin/settings/class-wc-settings-accounts.php
@@ -36,7 +36,7 @@ class WC_Settings_Accounts extends WC_Settings_Page {
 			$erasure_text = sprintf( '<a href="%s">%s</a>', esc_url( admin_url( 'tools.php?page=remove_personal_data' ) ), $erasure_text );
 		}
 
-		$tracking_info_text = sprintf( '<a href="%s" target="_blank">%s</a>','https://woocommerce.com/usage-tracking', esc_html__( 'Read more about what we collect', 'woocommerce' ) );
+		$tracking_info_text = sprintf( '<a href="%s" target="_blank">%s</a>', 'https://woocommerce.com/usage-tracking', esc_html__( 'Read more about what we collect', 'woocommerce' ) );
 
 		$settings = apply_filters(
 			'woocommerce_' . $this->id . '_settings',
@@ -243,6 +243,7 @@ class WC_Settings_Accounts extends WC_Settings_Page {
 				array(
 					'title'         => __( 'Enable tracking', 'woocommerce' ),
 					'desc'          => __( 'Allow usage of WooCommerce to be tracked', 'woocommerce' ),
+					/* Translators: %s URL to tracking info screen. */
 					'desc_tip'      => sprintf( esc_html__( 'If you would rather opt-out, and do not check this box, we will not know this store exists and we will not collect any usage data. %s.', 'woocommerce' ), $tracking_info_text ),
 					'id'            => 'woocommerce_allow_tracking',
 					'type'          => 'checkbox',
diff --git a/includes/class-wc-tracker.php b/includes/class-wc-tracker.php
index 1994cb50837..ab99163bd29 100644
--- a/includes/class-wc-tracker.php
+++ b/includes/class-wc-tracker.php
@@ -60,16 +60,19 @@ class WC_Tracker {
 		update_option( 'woocommerce_tracker_last_send', time() );
 
 		$params = self::get_tracking_data();
-		wp_safe_remote_post( self::$api_url, array(
-			'method'      => 'POST',
-			'timeout'     => 45,
-			'redirection' => 5,
-			'httpversion' => '1.0',
-			'blocking'    => false,
-			'headers'     => array( 'user-agent' => 'WooCommerceTracker/' . md5( esc_url_raw( home_url( '/' ) ) ) . ';' ),
-			'body'        => wp_json_encode( $params ),
-			'cookies'     => array(),
-		) );
+		wp_safe_remote_post(
+			self::$api_url,
+			array(
+				'method'      => 'POST',
+				'timeout'     => 45,
+				'redirection' => 5,
+				'httpversion' => '1.0',
+				'blocking'    => false,
+				'headers'     => array( 'user-agent' => 'WooCommerceTracker/' . md5( esc_url_raw( home_url( '/' ) ) ) . ';' ),
+				'body'        => wp_json_encode( $params ),
+				'cookies'     => array(),
+			)
+		);
 	}
 
 	/**
@@ -87,23 +90,23 @@ class WC_Tracker {
 	 * @return array
 	 */
 	private static function get_tracking_data() {
-		$data                       = array();
+		$data = array();
 
 		// General site info.
-		$data['url']                = home_url();
-		$data['email']              = apply_filters( 'woocommerce_tracker_admin_email', get_option( 'admin_email' ) );
-		$data['theme']              = self::get_theme_info();
+		$data['url']   = home_url();
+		$data['email'] = apply_filters( 'woocommerce_tracker_admin_email', get_option( 'admin_email' ) );
+		$data['theme'] = self::get_theme_info();
 
 		// WordPress Info.
-		$data['wp']                 = self::get_wordpress_info();
+		$data['wp'] = self::get_wordpress_info();
 
 		// Server Info.
-		$data['server']             = self::get_server_info();
+		$data['server'] = self::get_server_info();
 
 		// Plugin info.
-		$all_plugins                = self::get_all_plugins();
-		$data['active_plugins']     = $all_plugins['active_plugins'];
-		$data['inactive_plugins']   = $all_plugins['inactive_plugins'];
+		$all_plugins              = self::get_all_plugins();
+		$data['active_plugins']   = $all_plugins['active_plugins'];
+		$data['inactive_plugins'] = $all_plugins['inactive_plugins'];
 
 		// Jetpack & WooCommerce Connect.
 		$data['jetpack_version']    = defined( 'JETPACK__VERSION' ) ? JETPACK__VERSION : 'none';
@@ -114,26 +117,26 @@ class WC_Tracker {
 		$data['helper_connected']   = self::get_helper_connected();
 
 		// Store count info.
-		$data['users']              = self::get_user_counts();
-		$data['products']           = self::get_product_counts();
-		$data['orders']             = self::get_orders();
-		$data['reviews']            = self::get_review_counts();
-		$data['categories']         = self::get_category_counts();
+		$data['users']      = self::get_user_counts();
+		$data['products']   = self::get_product_counts();
+		$data['orders']     = self::get_orders();
+		$data['reviews']    = self::get_review_counts();
+		$data['categories'] = self::get_category_counts();
 
 		// Payment gateway info.
-		$data['gateways']           = self::get_active_payment_gateways();
+		$data['gateways'] = self::get_active_payment_gateways();
 
 		// Shipping method info.
-		$data['shipping_methods']   = self::get_active_shipping_methods();
+		$data['shipping_methods'] = self::get_active_shipping_methods();
 
 		// Get all WooCommerce options info.
-		$data['settings']           = self::get_all_woocommerce_options_values();
+		$data['settings'] = self::get_all_woocommerce_options_values();
 
 		// Template overrides.
 		$data['template_overrides'] = self::get_all_template_overrides();
 
 		// Template overrides.
-		$data['admin_user_agents']  = self::get_admin_user_agents();
+		$data['admin_user_agents'] = self::get_admin_user_agents();
 
 		return apply_filters( 'woocommerce_tracker_data', $data );
 	}
@@ -197,20 +200,20 @@ class WC_Tracker {
 		}
 
 		if ( function_exists( 'ini_get' ) ) {
-			$server_data['php_post_max_size'] = size_format( wc_let_to_num( ini_get( 'post_max_size' ) ) );
-			$server_data['php_time_limt'] = ini_get( 'max_execution_time' );
+			$server_data['php_post_max_size']  = size_format( wc_let_to_num( ini_get( 'post_max_size' ) ) );
+			$server_data['php_time_limt']      = ini_get( 'max_execution_time' );
 			$server_data['php_max_input_vars'] = ini_get( 'max_input_vars' );
-			$server_data['php_suhosin'] = extension_loaded( 'suhosin' ) ? 'Yes' : 'No';
+			$server_data['php_suhosin']        = extension_loaded( 'suhosin' ) ? 'Yes' : 'No';
 		}
 
 		$database_version             = wc_get_server_database_version();
 		$server_data['mysql_version'] = $database_version['number'];
 
-		$server_data['php_max_upload_size'] = size_format( wp_max_upload_size() );
+		$server_data['php_max_upload_size']  = size_format( wp_max_upload_size() );
 		$server_data['php_default_timezone'] = date_default_timezone_get();
-		$server_data['php_soap'] = class_exists( 'SoapClient' ) ? 'Yes' : 'No';
-		$server_data['php_fsockopen'] = function_exists( 'fsockopen' ) ? 'Yes' : 'No';
-		$server_data['php_curl'] = function_exists( 'curl_init' ) ? 'Yes' : 'No';
+		$server_data['php_soap']             = class_exists( 'SoapClient' ) ? 'Yes' : 'No';
+		$server_data['php_fsockopen']        = function_exists( 'fsockopen' ) ? 'Yes' : 'No';
+		$server_data['php_curl']             = function_exists( 'curl_init' ) ? 'Yes' : 'No';
 
 		return $server_data;
 	}
@@ -232,7 +235,7 @@ class WC_Tracker {
 
 		foreach ( $plugins as $k => $v ) {
 			// Take care of formatting the data how we want it.
-			$formatted = array();
+			$formatted         = array();
 			$formatted['name'] = strip_tags( $v['Name'] );
 			if ( isset( $v['Version'] ) ) {
 				$formatted['version'] = strip_tags( $v['Version'] );
@@ -347,12 +350,15 @@ class WC_Tracker {
 	private static function get_review_counts() {
 		global $wpdb;
 		$review_count = array();
-		$counts       = $wpdb->get_results( "
+		$counts       = $wpdb->get_results(
+			"
 			SELECT comment_approved, COUNT(*) AS num_reviews
 			FROM {$wpdb->comments}
 			WHERE comment_type = 'review'
 			GROUP BY comment_approved
-			", ARRAY_A );
+			",
+			ARRAY_A
+		);
 		if ( $counts ) {
 			foreach ( $counts as $count ) {
 				if ( 1 === $count['comment_approved'] ) {
@@ -451,7 +457,7 @@ class WC_Tracker {
 		$template_paths = apply_filters( 'woocommerce_template_overrides_scan_paths', array( 'WooCommerce' => WC()->plugin_path() . '/templates/' ) );
 		$scanned_files  = array();
 
-		require_once( WC()->plugin_path() . '/includes/admin/class-wc-admin-status.php' );
+		require_once WC()->plugin_path() . '/includes/admin/class-wc-admin-status.php';
 
 		foreach ( $template_paths as $plugin_name => $template_path ) {
 			$scanned_files[ $plugin_name ] = WC_Admin_Status::scan_template_files( $template_path );
@@ -496,7 +502,8 @@ class WC_Tracker {
 	public static function get_order_totals() {
 		global $wpdb;
 
-		$gross_total = $wpdb->get_var( "
+		$gross_total = $wpdb->get_var(
+			"
 			SELECT
 				SUM( order_meta.meta_value ) AS 'gross_total'
 			FROM {$wpdb->prefix}posts AS orders
@@ -504,7 +511,8 @@ class WC_Tracker {
 			WHERE order_meta.meta_key =  '_order_total'
 				AND orders.post_status =  'wc-completed'
 			GROUP BY order_meta.meta_key
-		" );
+		"
+		);
 
 		if ( is_null( $gross_total ) ) {
 			$gross_total = 0;
@@ -523,13 +531,16 @@ class WC_Tracker {
 	private static function get_order_dates() {
 		global $wpdb;
 
-		$min_max = $wpdb->get_row( "
+		$min_max = $wpdb->get_row(
+			"
 			SELECT
 				MIN( post_date_gmt ) as 'first', MAX( post_date_gmt ) as 'last'
 			FROM {$wpdb->prefix}posts
 			WHERE post_type = 'shop_order'
 			AND post_status = 'wc-completed'
-		", ARRAY_A );
+		",
+			ARRAY_A
+		);
 
 		if ( is_null( $min_max ) ) {
 			$min_max = array(