property.nonPublicInInterface

Code example

<?php declare(strict_types = 1);

interface HasName
{
	protected string $name { get; set; }
}

Why is it reported?

PHP 8.4 introduced hooked properties in interfaces, but all interface properties must be public. Interfaces define a public contract that implementing classes must fulfil, so private or protected visibility is not allowed on interface properties.

How to fix it

Change the property visibility to public:

 <?php declare(strict_types = 1);

 interface HasName
 {
-	protected string $name { get; set; }
+	public string $name { get; set; }
 }