Use PHP 7.4 featers and PHP 8 polyfills

views/admin-pages/fields/field-multiselect.php

@@ -21,9 +21,9 @@
 	 */
 	wu_get_template(
 		'admin-pages/fields/partials/field-title',
-		array(
+		[
 			'field' => $field,
-		)
+		]
 	);
 
 	/**
@@ -33,9 +33,9 @@
 	 */
 	wu_get_template(
 		'admin-pages/fields/partials/field-description',
-		array(
+		[
 			'field' => $field,
-		)
+		]
 	);
 
 	?>