Use PHP 7.4 featers and PHP 8 polyfills

views/legacy/signup/steps/step-domain-url-preview.php

@@ -31,7 +31,7 @@ if ( ! defined('ABSPATH')) {
 	 */
 	$dynamic_part = '<strong id="wu-your-site" v-html="site_url ? site_url : \'yoursite\'">';
 	// This is used on the yoursite.network.com during sign-up
-	$dynamic_part .= isset($signup->results['blogname']) ? $signup->results['blogname'] : __('yoursite', 'wp-ultimo');
+	$dynamic_part .= $signup->results['blogname'] ?? __('yoursite', 'wp-ultimo');
 	$dynamic_part .= '</strong>';
 
 	$site_url = preg_replace('#^https?://#', '', WU_Signup()->get_site_url_for_previewer());

views/legacy/signup/steps/step-plans.php

@@ -21,24 +21,24 @@ if ( ! defined('ABSPATH')) {
 
 // Get all available plans
 $plans = wu_get_products(
-	array(
+	[
 		'type' => 'plan',
-	)
+	]
 );
 
 // Render the selector
 wu_get_template(
 	'legacy/signup/pricing-table/pricing-table',
-	array(
+	[
 		'plans'        => $plans,
 		'signup'       => $signup,
 		'current_plan' => false,
 		'is_shortcode' => false,
-		'atts'         => array(
+		'atts'         => [
 			'primary_color'          => '#00a1ff', // wu_get_setting('primary-color', '#00a1ff'),
 			'accent_color'           => '#78b336', // wu_get_setting('accent-color', '#78b336'),
 			'default_pricing_option' => 1, // wu_get_setting('default_pricing_option', 1),
 			'show_selector'          => true,
-		),
-	)
+		],
+	]
 );